| Monday, December 23rd, 1957 | | Washington Mutuals: CF Juan Barrón was injured while running up the stairs. The Diagnosis: strained posterior cruciate ligament. He's expected to miss about 4 weeks. |
| Saturday, November 16th, 1957 | | Boston Morrills: José Núñez has suffered a setback in his recovery. He is not expected to recover for another 2-3 months. |
| Thursday, October 10th, 1957 | | Baltimore Barons: 3B Claude Bell is ill. The Diagnosis: stomach virus. He's expected to miss about 2 days. |
| Tuesday, October 8th, 1957 | | Boston Morrills: 1B Jud Hale was injured after being bit by a poisonous snake. The Diagnosis: undisclosed injury. He's expected to miss about 1-2 weeks. |
| Monday, October 7th, 1957 | | Boston Colonials: MR Adam Magee is ill. The Diagnosis: allergic reaction. He's expected to miss about 3 days. |
| Sunday, October 6th, 1957 | | Atlanta Rebels: CF Dan Westphal was injured on a defensive play. The Diagnosis: back stiffness. He's expected to miss about 2 weeks. |
| Friday, October 4th, 1957 | | Chicago Clout: LF Rens Munten was injured while throwing the ball. The Diagnosis: sore shoulder. He's expected to miss about 3 days. |
| Wednesday, October 2nd, 1957 | | Chicago Hitmen: MR Anastasio Pérez was injured while pitching. The Diagnosis: finger blister. This is a day-to-day injury expected to last 5 days. |
| Sunday, September 29th, 1957 | | Chicago Clout: 3B Tsumemasa Yamanaka was injured while throwing the ball. The Diagnosis: mild oblique strain. This is a day-to-day injury expected to last 2 days. |
| Thursday, September 26th, 1957 | | Atlanta Rebels: SS José Gonzáles was injured in a collision at a base. The Diagnosis: separated shoulder. He's expected to miss about 4 weeks. |
| Wednesday, September 25th, 1957 | | Chicago Hitmen: MR Les Strong was injured while pitching. The Diagnosis: tired arm. He's expected to miss about 5 days. | | Chicago Hitmen: 1B Ralph Baxter was injured on a defensive play. The Diagnosis: fractured finger. He's expected to miss about 6 weeks. |
| Tuesday, September 24th, 1957 | | New York Empires: RF Guillermo Ramos is ill. The Diagnosis: food poisoning. He's expected to miss about 3 days. | | Chicago Clout: Bob Patterson has suffered a setback in his recovery from injury. He has elected to retire rather than continue his rehabilitation. This is a CAREER ENDING injury! |
| Monday, September 23rd, 1957 | | Atlanta Rebels: SP Jon Dennis was injured while running the bases. The Diagnosis: intercostal strain. He's expected to miss about 3 weeks. | | Atlanta Rebels: MR Martin Davis was injured while pitching. The Diagnosis: elbow ligament reconstruction surgery. He's expected to miss about 9 months. | | Cleveland Eagles: SS José García was injured while running the bases. The Diagnosis: mild abdominal strain. This is a day-to-day injury expected to last one week. |
| Saturday, September 21st, 1957 | | Atlanta Rebels: SP Ward Barrett was injured while pitching. The Diagnosis: finger blister. He's expected to miss about 2 weeks. | | Baltimore Barons: CF Jorge Castillo was injured on a defensive play. The Diagnosis: fractured elbow. He's expected to miss about 5-6 months. |
| Thursday, September 19th, 1957 | | Pittsburgh Keystones: SP Neal McEver was injured while pitching. The Diagnosis: forearm soreness. This is a day-to-day injury expected to last 5 days. | | Detroit Bears: SS Luis Ruíz was injured while running the bases. The Diagnosis: sprained thumb. He's expected to miss about 6 days. | | Baltimore Barons: CF Charlie Reid was injured on a defensive play. The Diagnosis: shoulder tendinitis. He's expected to miss about 5 weeks. |
| Wednesday, September 18th, 1957 | | Cincinnati Rivermen: 2B Dan Pace was injured while running the bases. The Diagnosis: elbow contusion. He's expected to miss about 5 days. |
| Sunday, September 15th, 1957 | | Chicago Hitmen: C Trent Eaton was injured while throwing the ball. The Diagnosis: shoulder inflammation. He's expected to miss about 2-3 weeks. | | Chicago Hitmen: 2B Gene Roberson was injured while running the bases. The Diagnosis: knee inflammation. He's expected to miss about 3 days. | | New York Empires: LF Mark Green was injured on a defensive play. The Diagnosis: fractured foot. He's expected to miss about 3-4 weeks. | | Washington Mutuals: SP Nacho Ramos was injured while pitching. The Diagnosis: sore ankle. This is a day-to-day injury expected to last 1 day. |
| Wednesday, September 11th, 1957 | | Atlanta Rebels: RF Koin Murayama was injured while throwing the ball. The Diagnosis: sprained elbow. He's expected to miss about 6 weeks. | | Boston Colonials: RF Norm Sanders was injured while running the bases. The Diagnosis: sore back. This is a day-to-day injury expected to last 3 days. | | Cleveland Eagles: CF Carlos Pérez was injured on a defensive play. The Diagnosis: shoulder soreness. This is a day-to-day injury expected to last 2 weeks. |
| Monday, September 9th, 1957 | | Cleveland Eagles: LF Ray Stafford was injured while running the bases. The Diagnosis: bruised knee. This is a day-to-day injury expected to last 2 days. |
| Sunday, September 8th, 1957 | | St. Louis Dredgers: CF Will Brown was injured on a defensive play. The Diagnosis: hamstring strain. He's expected to miss about 5 weeks. | | Baltimore Barons: 2B Francisco Mojica was injured while running the bases. The Diagnosis: groin soreness. This is a day-to-day injury expected to last 2 days. | | New York Empires: SP Tadamasa Okada was injured while pitching. The Diagnosis: sore shoulder. He's expected to miss about 4 days. | | Detroit Bears: RF Jared Walls was injured on a defensive play. The Diagnosis: sprained knee. He's expected to miss about one week. | | Detroit Bears: 3B Eduardo Rosas was injured in a collision at a base. The Diagnosis: strained oblique. He's expected to miss about 1-2 weeks. |
| Friday, September 6th, 1957 | | New York Empires: LF Mark Green was injured on a defensive play. The Diagnosis: chipped tooth. This is a day-to-day injury expected to last 1 day. |
| Wednesday, September 4th, 1957 | | Atlanta Rebels: LF Darren Nelson was injured on a defensive play. The Diagnosis: sprained ankle. He's expected to miss about 4 weeks. |
| Tuesday, September 3rd, 1957 | | Los Angeles Moguls: CL Clinton Larson was injured while pitching. The Diagnosis: neck stiffness. This is a day-to-day injury expected to last 6 days. |
| Sunday, September 1st, 1957 | | Atlanta Rebels: C Ramón Guerrero was injured in a collision at home plate. The Diagnosis: shoulder tendinitis. He's expected to miss about 2 weeks. | | Chicago Hitmen: SP Kevin O'Spillane was injured while running the bases. The Diagnosis: back stiffness. This is a day-to-day injury expected to last 1 day. | | Cincinnati Rivermen: CF Vincente Ibarra was injured on a defensive play. The Diagnosis: back tightness. He's expected to miss about 1-2 weeks. |
| Saturday, August 31st, 1957 | | Atlanta Rebels: 1B José Piña was injured being hit by a pitch. The Diagnosis: knee contusion. He's expected to miss about 2 weeks. | | Detroit Bears: LF Emílio Rodríguez was injured while running the bases. The Diagnosis: knee soreness. He's expected to miss about 6 days. | | Cleveland Eagles: SP Bob Ervin was injured while pitching. The Diagnosis: partially torn labrum. He's expected to miss about 3 months. |
| Friday, August 30th, 1957 | | Detroit Bears: RF Takahiro Nemoto was injured on a defensive play. The Diagnosis: oblique strain. He's expected to miss about 2 weeks. |
| Monday, August 26th, 1957 | | Chicago Hitmen: Pablo Márquez has suffered a setback in his recovery. He is not expected to recover for another 3 weeks. |
| Sunday, August 25th, 1957 | | Boston Colonials: 2B José Medina was injured in a collision at a base. The Diagnosis: sprained ankle. He's expected to miss about 4-5 weeks. | | Detroit Bears: RF Kelly Harris was injured on a defensive play. The Diagnosis: wrist tendinitis. He's expected to miss about 3 weeks. |
| Friday, August 23rd, 1957 | | Boston Colonials: LF Pablo Fuentes was injured on a defensive play. The Diagnosis: mild shoulder strain. He's expected to miss about 1-2 weeks. | | Los Angeles Moguls: CF Reynaldo Robles was injured on a defensive play. The Diagnosis: torn thumb ligament. He's expected to miss about 3 weeks. | | Baltimore Barons: SP Sterling Moore was injured while pitching. The Diagnosis: mild oblique strain. This is a day-to-day injury expected to last 2 days. | | New York Empires: CF Arturo Reyes was injured on a defensive play. The Diagnosis: sprained elbow. He's expected to miss about 4 weeks. |
| Tuesday, August 20th, 1957 | | Chicago Hitmen: 2B Gene Roberson was injured being hit by a pitch. The Diagnosis: precautionary reasons (head injury). He's expected to miss about 2 days. |
| Thursday, August 15th, 1957 | | Boston Colonials: RF Dan Middleton was injured on a defensive play. The Diagnosis: wrist tendinitis. He's expected to miss about 3 weeks. |
| Wednesday, August 14th, 1957 | | Cleveland Eagles: C Zak Krause was injured while running the bases. The Diagnosis: back stiffness. This is a day-to-day injury expected to last 2 days. |
| Friday, August 9th, 1957 | | Los Angeles Moguls: MR Miguel Chávez was injured while pitching. The Diagnosis: forearm stiffness. He's expected to miss about 4 days. |
| Wednesday, August 7th, 1957 | | St. Louis Dredgers: 1B Joseph Seals was injured being hit by a pitch. The Diagnosis: knee contusion. He's expected to miss about 2 weeks. |
| Tuesday, August 6th, 1957 | | St. Louis Dredgers: 2B Chin-seok Chong was injured while running the bases. The Diagnosis: hamstring tendinitis. He's expected to miss about 5 days. | | St. Louis Dredgers: SP Keith Cook was injured while pitching. The Diagnosis: hamstring soreness. He's expected to miss about 4 days. |
| Sunday, August 4th, 1957 | | Boston Colonials: SP Michael Weber was injured while pitching. The Diagnosis: sore back. This is a day-to-day injury expected to last 2 days. | | Boston Morrills: SP Jerold Speaker was injured while pitching. The Diagnosis: rotator cuff inflammation. He's expected to miss about 3 months. | | Baltimore Barons: MR Rudy Johnson was injured while pitching. The Diagnosis: ruptured bicep tendon. He's expected to miss about 6 months. |
| Friday, August 2nd, 1957 | | Los Angeles Moguls: SP José García was injured while pitching. The Diagnosis: shoulder inflammation. He's expected to miss about 2-3 months. | | Detroit Bears: RF Dale Newman was injured in a collision at a base. The Diagnosis: separated shoulder. He's expected to miss about 3 weeks. |
| Wednesday, July 31st, 1957 | | Cleveland Eagles: CF Carlos Pérez is ill. The Diagnosis: inner ear infection. He's expected to miss about 4 days. |
| Tuesday, July 30th, 1957 | | Detroit Bears: SP Gustavo Pacheco was injured while pitching. The Diagnosis: hamstring soreness. He's expected to miss about one week. | | Baltimore Barons: CF George Bissett was injured while throwing the ball. The Diagnosis: strained hamstring. He's expected to miss about 6 weeks. |
| Monday, July 29th, 1957 | | Pittsburgh Keystones: RF Millard Kaufman was injured on a defensive play. The Diagnosis: hand soreness. This is a day-to-day injury expected to last 1-2 weeks. |
| Sunday, July 28th, 1957 | | Los Angeles Quakes: MR Phil Gilmore is ill. The Diagnosis: heat exhaustion. This is a day-to-day injury expected to last 2 days. | | Boston Colonials: RF Alfred Adams was injured on a defensive play. The Diagnosis: shoulder soreness. He's expected to miss about 3-4 weeks. | | Chicago Hitmen: RF Pablo Márquez was injured while running the bases. The Diagnosis: sore knee. This is a day-to-day injury expected to last 5 days. |
| Saturday, July 27th, 1957 | | Atlanta Rebels: CF Dan Westphal was injured while running the bases. The Diagnosis: hamstring tendinitis. He's expected to miss about 4 days. | | Detroit Bears: CL Joe Powell was injured while pitching. The Diagnosis: elbow inflammation. He's expected to miss about 3 months. |
| Thursday, July 25th, 1957 | | Los Angeles Moguls: 2B Caleb Lynch was injured while running the bases. The Diagnosis: mild oblique strain. This is a day-to-day injury expected to last 3 days. | | Cleveland Eagles: 1B Jorge Ruíz was injured while running the bases. The Diagnosis: sore back. This is a day-to-day injury expected to last 3 days. | | New York Empires: SP Alejandro Guerrero was injured while pitching. The Diagnosis: sprained ankle. This is a day-to-day injury expected to last 4 days. |
| Monday, July 22nd, 1957 | | Boston Morrills: 2B Kenny Campbell is ill. The Diagnosis: flu. This is a day-to-day injury expected to last 1 day. | | Atlanta Rebels: C Ramón Guerrero was injured being hit by a pitch. The Diagnosis: blurred vision. This is a day-to-day injury expected to last 1 day. |
| Saturday, July 20th, 1957 | | Cincinnati Rivermen: Dan Pace has suffered a setback in his recovery. He is not expected to recover for another 4 days. | | Detroit Bears: SP Stewart Emmott was injured while pitching. The Diagnosis: torn labrum (Shoulder). He's expected to miss about 4 months. |
| Friday, July 19th, 1957 | | Cleveland Eagles: 2B Brad Spencer was injured being hit by a pitch. The Diagnosis: fractured finger. He's expected to miss about 5-6 weeks. | | Boston Morrills: MR Ken Blair was injured while pitching. The Diagnosis: mild shoulder inflammation. He's expected to miss about 2 weeks. |
| Sunday, July 14th, 1957 | | Chicago Hitmen: CF Félix González was injured while running the bases. The Diagnosis: torn ankle ligaments. He's expected to miss about 3 months. | | Baltimore Barons: LF Gustavo Martínez was injured while running the bases. The Diagnosis: back soreness. He's expected to miss about one week. | | Washington Mutuals: LF Ed Couch was injured on a defensive play. The Diagnosis: recurring back spasms. He's expected to miss about 6-7 weeks. | | Cleveland Eagles: 1B Jorge Ruíz was injured while running the bases. The Diagnosis: hand soreness. This is a day-to-day injury expected to last 4 days. | | Los Angeles Quakes: RF Jaime Delgado was injured on a defensive play. The Diagnosis: back stiffness. He's expected to miss about 2 weeks. |
| Saturday, July 13th, 1957 | | Baltimore Barons: SP Mitchell Gregg was injured while pitching. The Diagnosis: back spasms. This is a day-to-day injury expected to last 6 days. |
| Thursday, July 11th, 1957 | | Cincinnati Rivermen: MR Lucan Biavaschi is ill. The Diagnosis: dizziness and nausea. This is a day-to-day injury expected to last 4 days. | | Chicago Hitmen: SP Jimmy Belmore was injured while pitching. The Diagnosis: back stiffness. This is a day-to-day injury expected to last 1 day. |
| Wednesday, July 10th, 1957 | | St. Louis Dredgers: CF Desmond Davies was injured on a defensive play. The Diagnosis: broken bone in elbow. He's expected to miss about 4-5 months. | | Cincinnati Rivermen: 2B Dan Pace was injured on a defensive play. The Diagnosis: back soreness. He's expected to miss about one week. | | Los Angeles Quakes: C Don Cook was injured in a collision at a base. The Diagnosis: sprained elbow. He's expected to miss about 2 weeks. |
| Tuesday, July 9th, 1957 | | Boston Colonials: 3B John Monroe was injured in a collision at a base. The Diagnosis: shoulder soreness. This is a day-to-day injury expected to last 1-2 weeks. | | Cincinnati Rivermen: 2B Dan Pace was injured while running the bases. The Diagnosis: knee tendinitis. This is a day-to-day injury expected to last one week. |
| Monday, July 8th, 1957 | | Detroit Bears: MR Elliot McCaw was injured while pitching. The Diagnosis: torn meniscus (knee). He's expected to miss about 4 weeks. |
| Sunday, July 7th, 1957 | | Boston Colonials: Roger Harding has suffered a setback in his recovery. He is not expected to recover for another 2 months. | | St. Louis Dredgers: C Héctor Muñóz was injured while running the bases. The Diagnosis: broken bone in elbow. He's expected to miss about 5-6 months. | | Chicago Hitmen: SS Bill Johnson was injured while running the bases. The Diagnosis: ankle soreness. He's expected to miss about 4 days. | | Cleveland Eagles: SP Dan Perkins was injured while pitching. The Diagnosis: ulnar nerve irritation. He's expected to miss about 4 months. |
| Saturday, July 6th, 1957 | | St. Louis Dredgers: LF Gang Han was injured on a defensive play. The Diagnosis: sprained ankle. This is a day-to-day injury expected to last 2 weeks. | | New York Empires: MR Rafael Smith was injured while pitching. The Diagnosis: back tightness. This is a day-to-day injury expected to last 6 days. |
| Friday, July 5th, 1957 | | Boston Colonials: SP Michael Weber was injured while pitching. The Diagnosis: hamstring soreness. He's expected to miss about 2 days. | | New York Empires: LF Mark Green was injured while running the bases. The Diagnosis: strained groin. He's expected to miss about 2 weeks. | | Washington Mutuals: RF Loren Burnham was injured in a collision at a base. The Diagnosis: back spasms. This is a day-to-day injury expected to last one week. |
| Wednesday, July 3rd, 1957 | | Boston Morrills: RF Tony Lucas was injured while running the bases. The Diagnosis: sprained knee. He's expected to miss about 7 weeks. | | Chicago Clout: MR Hidetoshi Watanabe was injured while pitching. The Diagnosis: strained forearm. He's expected to miss about 3-4 weeks. | | New York Empires: SP Dan Rancourt was injured while pitching. The Diagnosis: shoulder inflammation. He's expected to miss about 6 months. |
| Sunday, June 30th, 1957 | | Pittsburgh Keystones: SP Jerome Moore was injured while pitching. The Diagnosis: torn flexor tendon (elbow). He's expected to miss about 13 months. | | Los Angeles Moguls: 3B Mike Stewart was injured while running the bases. The Diagnosis: knee contusion. He's expected to miss about 3 days. | | Detroit Bears: SP Gustavo Pacheco was injured while pitching. The Diagnosis: mild abdominal strain. This is a day-to-day injury expected to last 2 days. | | Detroit Bears: MR Elliot McCaw was injured while running the bases. The Diagnosis: sore ankle. This is a day-to-day injury expected to last 4 days. |
| Saturday, June 29th, 1957 | | San Francisco Golden Gators: CF Roberto Núñez was injured in a collision at a base. The Diagnosis: back soreness. He's expected to miss about 5 days. | | Chicago Clout: SP Bill Pierce was injured while pitching. The Diagnosis: mild abdominal strain. This is a day-to-day injury expected to last 1 day. |
| Friday, June 28th, 1957 | | Atlanta Rebels: LF William Harrison was injured on a defensive play. The Diagnosis: bruised knee. This is a day-to-day injury expected to last 6 days. |
| Wednesday, June 26th, 1957 | | Los Angeles Moguls: SP Brent Nelson was injured while pitching. The Diagnosis: strained back. This is a day-to-day injury expected to last one week. | | St. Louis Dredgers: MR Elia Tari was injured while pitching. The Diagnosis: sore shoulder. He's expected to miss about 3 weeks. |
| Saturday, June 22nd, 1957 | | Chicago Hitmen: RF Félix González was injured on a defensive play. The Diagnosis: bruised finger. This is a day-to-day injury expected to last 5 days. |
| Thursday, June 20th, 1957 | | Boston Colonials: SP Michael Weber was injured while pitching. The Diagnosis: strained back. This is a day-to-day injury expected to last 6 days. | | Boston Colonials: RF Alfred Adams was injured while running the bases. The Diagnosis: hamstring tendinitis. He's expected to miss about 2 weeks. |
| Sunday, June 16th, 1957 | | Baltimore Barons: SP Mitchell Gregg was injured while pitching. The Diagnosis: strained forearm. He's expected to miss about 3 weeks. | | Cleveland Eagles: LF Carlos Pérez was injured on a defensive play. The Diagnosis: strained back. He's expected to miss about 2 weeks. | | New York Empires: LF Mark Green was injured while throwing the ball. The Diagnosis: mild calf strain. This is a day-to-day injury expected to last 1 day. |
| Saturday, June 15th, 1957 | | Detroit Bears: SS Tony Velásquez was injured while running the bases. The Diagnosis: sore hamstring. This is a day-to-day injury expected to last 2 days. |
| Friday, June 14th, 1957 | | Atlanta Rebels: 3B David Shepard was injured in a collision at a base. The Diagnosis: separated shoulder. He's expected to miss about 3 weeks. |
| Tuesday, June 11th, 1957 | | Baltimore Barons: CF Jorge Castillo was injured being hit by a pitch. The Diagnosis: bruised forearm. This is a day-to-day injury expected to last 5 days. |
| Sunday, June 9th, 1957 | | Boston Morrills: 1B Ben Schultz was injured on a defensive play. The Diagnosis: oblique strain. He's expected to miss about one week. | | Los Angeles Quakes: 1B Will Daniels was injured on a defensive play. The Diagnosis: mild hamstring strain. This is a day-to-day injury expected to last 3 days. | | Washington Mutuals: LF Jeremy Jones was injured on a defensive play. The Diagnosis: fractured thumb. He's expected to miss about 5 weeks. |
| Saturday, June 8th, 1957 | | Chicago Clout: Aurelio Marrero has suffered a setback in his recovery. He is not expected to recover for another 5 days. | | Cincinnati Rivermen: SP Jon Dennis was injured while pitching. The Diagnosis: mild shoulder strain. He's expected to miss about 3 days. | | Boston Morrills: 2B Kenny Campbell was injured while throwing the ball. The Diagnosis: mild abdominal strain. This is a day-to-day injury expected to last 2 days. |
| Thursday, June 6th, 1957 | | Chicago Hitmen: 2B Bill Miller was injured being hit by a pitch. The Diagnosis: fractured finger. He's expected to miss about 4 weeks. | | Los Angeles Moguls: SP Brody MacFadden was injured while pitching. The Diagnosis: surgery to remove bone chips (elbow). He's expected to miss about 4 months. | | Los Angeles Moguls: CF Reynaldo Robles was injured while running the bases. The Diagnosis: thumb contusion. He's expected to miss about 1-2 weeks. |
| Tuesday, June 4th, 1957 | | Chicago Clout: Aurelio Marrero has suffered a setback in his recovery. He is not expected to recover for another 5 days. |
| Monday, June 3rd, 1957 | | Atlanta Rebels: RF Koin Murayama was injured while running the bases. The Diagnosis: sore groin. This is a day-to-day injury expected to last 5 days. | | Baltimore Barons: SP Cris Guerra was injured while pitching. The Diagnosis: sprained ankle. This is a day-to-day injury expected to last 5 days. |
| Sunday, June 2nd, 1957 | | Boston Colonials: SP Michael Weber was injured while pitching. The Diagnosis: strained back. This is a day-to-day injury expected to last one week. | | Cleveland Eagles: MR Júlio Castillo was injured while pitching. The Diagnosis: forearm cramp. This is a day-to-day injury expected to last 4 days. |
| Friday, May 31st, 1957 | | St. Louis Dredgers: CF Gang Han was injured on a defensive play. The Diagnosis: foot contusion. He's expected to miss about 2 weeks. | | Washington Mutuals: MR Bong-ok Ya was injured while pitching. The Diagnosis: finger blister. This is a day-to-day injury expected to last 2 days. |
| Thursday, May 30th, 1957 | | Boston Morrills: Roy Harvey has suffered a setback in his recovery. He is not expected to recover for another one week. | | Chicago Hitmen: SS Hank Harris was injured while running the bases. The Diagnosis: quadriceps soreness. This is a day-to-day injury expected to last 2 days. | | Washington Mutuals: 3B Jorge Cruz was injured while running the bases. The Diagnosis: hamstring soreness. He's expected to miss about 5 days. |
| Friday, May 24th, 1957 | | Boston Colonials: SS Roger Harding was injured in a collision at a base. The Diagnosis: strained hamstring. He's expected to miss about 3 months. | | Detroit Bears: 1B Eldon Nolan was injured while running the bases. The Diagnosis: bruised ankle. This is a day-to-day injury expected to last 2 days. |
| Thursday, May 23rd, 1957 | | Cincinnati Rivermen: RF Darren Nelson was injured on a defensive play. The Diagnosis: bruised finger. This is a day-to-day injury expected to last 4 days. | | Chicago Clout: 2B Aurelio Marrero was injured on a defensive play. The Diagnosis: shoulder soreness. He's expected to miss about 2 weeks. |
| Tuesday, May 21st, 1957 | | Washington Mutuals: LF Jeremy Jones was injured while throwing the ball. The Diagnosis: sore back. This is a day-to-day injury expected to last 4 days. | | Cleveland Eagles: 2B Brad Spencer was injured in a collision at a base. The Diagnosis: separated shoulder. He's expected to miss about 6 weeks. |
| Monday, May 20th, 1957 | | Atlanta Rebels: 2B Mark Taylor is ill. The Diagnosis: flu-like symptoms. This is a day-to-day injury expected to last 1 day. | | Cincinnati Rivermen: RF Darren Nelson was injured being hit by a pitch. The Diagnosis: bruised thumb. This is a day-to-day injury expected to last 1 day. | | Washington Mutuals: SS Júlio Román was injured in a collision at a base. The Diagnosis: concussion. This is a day-to-day injury expected to last 3 days. | | Detroit Bears: CF Kelly Harris was injured on a defensive play. The Diagnosis: high ankle sprain. He's expected to miss about 3-4 weeks. | | Cleveland Eagles: SP Luis Mateo was injured while throwing the ball. The Diagnosis: back stiffness. This is a day-to-day injury expected to last 1 day. |
| Saturday, May 18th, 1957 | | Chicago Hitmen: SS Hank Harris was injured while throwing the ball. The Diagnosis: tired arm. He's expected to miss about 6 days. |
| Thursday, May 16th, 1957 | | New York Empires: Dan Rancourt has suffered a setback in his recovery. He is not expected to recover for another 4 days. | | Boston Colonials: RF Alfred Adams was injured while running the bases. The Diagnosis: strained oblique. He's expected to miss about 2 weeks. | | Atlanta Rebels: SP Ward Barrett was injured while pitching. The Diagnosis: mild calf strain. This is a day-to-day injury expected to last 4 days. | | Atlanta Rebels: RF Bill Rogers was injured being hit by a pitch. The Diagnosis: bruised shin. This is a day-to-day injury expected to last 3 days. | | Los Angeles Moguls: LF Minoru Kiyomizu was injured while throwing the ball. The Diagnosis: sore ankle. This is a day-to-day injury expected to last 4 days. | | Chicago Clout: 1B Larry Todd was injured while running the bases. The Diagnosis: torn hamstring. He's expected to miss about 6-7 weeks. |
| Wednesday, May 15th, 1957 | | Baltimore Barons: 2B Caleb Lynch was injured in a collision at a base. The Diagnosis: knee contusion. He's expected to miss about one week. | | Chicago Clout: LF Rens Munten was injured on a defensive play. The Diagnosis: back tightness. He's expected to miss about 2 weeks. |
| Sunday, May 12th, 1957 | | Chicago Hitmen: CF Arnold Norton was injured on a defensive play. The Diagnosis: strained back. He's expected to miss about 2 weeks. | | Detroit Bears: RF Dale Newman was injured on a defensive play. The Diagnosis: shoulder tendinitis. He's expected to miss about one week. | | Boston Morrills: SP Sean Carpenter was injured while pitching. The Diagnosis: forearm stiffness. He's expected to miss about 4 days. | | Boston Morrills: MR Ken Blair was injured while pitching. The Diagnosis: mild abdominal strain. This is a day-to-day injury expected to last 3 days. |
| Saturday, May 11th, 1957 | | Boston Colonials: SP Michael Weber was injured while pitching. The Diagnosis: mild oblique strain. This is a day-to-day injury expected to last 6 days. | | St. Louis Dredgers: CF Gang Han was injured on a defensive play. The Diagnosis: sore elbow. This is a day-to-day injury expected to last one week. |
| Thursday, May 9th, 1957 | | Boston Colonials: MR Subaru Yamamoto was injured while pitching. The Diagnosis: strained abdominal muscle. He's expected to miss about one week. |
| Wednesday, May 8th, 1957 | | Los Angeles Quakes: RF Jaime Delgado was injured when he fell asleep at the wheel. The Diagnosis: sprained ankle. This is a day-to-day injury expected to last 4 days. | | St. Louis Dredgers: SP Juan Rodríguez was injured while pitching. The Diagnosis: elbow soreness. He's expected to miss about one week. | | Boston Morrills: CF Roy Harvey was injured on a defensive play. The Diagnosis: strained oblique. He's expected to miss about 4 weeks. | | Boston Morrills: RF Mike Nadler was injured on a defensive play. The Diagnosis: shoulder soreness. This is a day-to-day injury expected to last 2 weeks. |
| Tuesday, May 7th, 1957 | | Atlanta Rebels: RF Bill Rogers was injured while running the bases. The Diagnosis: back soreness. He's expected to miss about 4 days. |
| Sunday, May 5th, 1957 | | Chicago Hitmen: LF Lawrence Starratt was injured while running the bases. The Diagnosis: torn quadriceps. He's expected to miss about 4 weeks. | | Pittsburgh Keystones: LF Kurt Harrington was injured while running the bases. The Diagnosis: mild oblique strain. This is a day-to-day injury expected to last 2 days. | | New York Empires: SP Dan Rancourt was injured while pitching. The Diagnosis: finger blister. This is a day-to-day injury expected to last 2 weeks. | | Cleveland Eagles: RF Jesús Amaya was injured while throwing the ball. The Diagnosis: finger blister. This is a day-to-day injury expected to last 5 days. |
| Saturday, May 4th, 1957 | | Atlanta Rebels: CF Dan Westphal was injured on a defensive play. The Diagnosis: sprained elbow. He's expected to miss about 5 weeks. | | Boston Morrills: SP Jerold Speaker was injured while pitching. The Diagnosis: shoulder soreness. This is a day-to-day injury expected to last 3 days. |
| Friday, May 3rd, 1957 | | Chicago Clout: 2B Aurelio Marrero was injured while running the bases. The Diagnosis: knee tendinitis. This is a day-to-day injury expected to last one week. |
| Thursday, May 2nd, 1957 | | Boston Morrills: SP Quintin Upchurch was injured while pitching. The Diagnosis: sprained ankle. This is a day-to-day injury expected to last 5 days. |
| Tuesday, April 30th, 1957 | | San Francisco Golden Gators: 3B David Carrillo was injured in a collision at a base. The Diagnosis: sprained ankle. This is a day-to-day injury expected to last 2 weeks. | | Atlanta Rebels: 1B José Piña was injured while running the bases. The Diagnosis: hip strain. He's expected to miss about 6 weeks. |
| Friday, April 26th, 1957 | | Los Angeles Moguls: 2B George O'Eric was injured while running the bases. The Diagnosis: hamstring tightness. This is a day-to-day injury expected to last 5 days. |
| Thursday, April 25th, 1957 | | Cincinnati Rivermen: 2B Dan Pace was injured while running the bases. The Diagnosis: groin tightness. This is a day-to-day injury expected to last 2 days. |
| Wednesday, April 24th, 1957 | | Boston Colonials: CF Ho-win Siu was injured on a defensive play. The Diagnosis: mild shoulder strain. He's expected to miss about 2 weeks. | | Boston Colonials: RF Alfred Adams was injured while throwing the ball. The Diagnosis: sore thumb. This is a day-to-day injury expected to last 2 days. | | Atlanta Rebels: SP Jeff Klein was injured while pitching. The Diagnosis: mild oblique strain. This is a day-to-day injury expected to last 6 days. |
| Tuesday, April 23rd, 1957 | | Los Angeles Moguls: SS Mark Rankin was injured in a collision at a base. The Diagnosis: strained hamstring. He's expected to miss about 2 weeks. |
| Tuesday, April 16th, 1957 | | St. Louis Dredgers: MR Po-fu Dun is ill. The Diagnosis: fever. He's expected to miss about 4 days. | | Chicago Clout: CL Victor Buckley was injured while pitching. The Diagnosis: mild abdominal strain. This is a day-to-day injury expected to last 4 days. |
| Monday, April 15th, 1957 | | New York Empires: José Gonzáles has suffered a setback in his recovery. He is not expected to recover for another one week. | | Cleveland Eagles: CF Sergio Salas was injured being hit by a pitch. The Diagnosis: fractured foot. He's expected to miss about 2-3 weeks. |
| Friday, April 12th, 1957 | | Boston Colonials: LF Palmer Camp was injured while throwing the ball. The Diagnosis: elbow soreness. He's expected to miss about 4 weeks. | | Los Angeles Moguls: MR Roger Joss was injured while pitching. The Diagnosis: back spasms. This is a day-to-day injury expected to last 6 days. |
| Wednesday, April 10th, 1957 | | Chicago Clout: 1B Larry Todd was injured while running the bases. The Diagnosis: strained rib cage muscle. He's expected to miss about 4 weeks. |
| Tuesday, April 9th, 1957 | | Boston Morrills: CL José Núñez was injured while pitching. The Diagnosis: torn flexor tendon (elbow). He's expected to miss about 9 months. |
| Monday, April 8th, 1957 | | Atlanta Rebels: Mark Taylor has suffered a setback in his recovery. He is not expected to recover for another 5 days. | | Atlanta Rebels: 2B David Shepard was injured in a collision at a base. The Diagnosis: ankle soreness. He's expected to miss about 1-2 weeks. |
| Sunday, April 7th, 1957 | | Chicago Hitmen: LF Pablo Márquez was injured on a defensive play. The Diagnosis: strained rib cage muscle. He's expected to miss about 4 weeks. | | Boston Morrills: 1B José Souza was injured in a collision at a base. The Diagnosis: sprained elbow. He's expected to miss about 3 weeks. |
| Thursday, April 4th, 1957 | | Chicago Hitmen: RF John Brown is ill. The Diagnosis: flu-like symptoms. This is a day-to-day injury expected to last 1 day. |
| Friday, March 29th, 1957 | | San Francisco Golden Gators: 2B Norm Palmer was injured being hit by a pitch. The Diagnosis: bone bruise (wrist). He's expected to miss about 2-3 weeks. | | St. Louis Dredgers: CF Will Brown was injured in a collision at a base. The Diagnosis: broken hamate bone. He's expected to miss about 2-3 months. | | Cleveland Eagles: MR Scott Gordon was injured while pitching. The Diagnosis: surgery to remove bone chips (elbow). He's expected to miss about 5 months. | | Chicago Clout: LF Héctor Soto was injured on a defensive play. The Diagnosis: broken kneecap. He's expected to miss about 7 months. |
| Wednesday, March 27th, 1957 | | Baltimore Barons: 3B Francisco Mojica was injured in a collision at a base. The Diagnosis: hamstring strain. He's expected to miss about 2-3 weeks. |
| Tuesday, March 26th, 1957 | | San Francisco Golden Gators: MR Hilton Hunter was injured while pitching. The Diagnosis: back stiffness. This is a day-to-day injury expected to last one week. | | Chicago Clout: C Bill Bell was injured while running the bases. The Diagnosis: foot soreness. This is a day-to-day injury expected to last 3 days. | | Cleveland Eagles: CF Carlos Pérez was injured while throwing the ball. The Diagnosis: forearm stiffness. He's expected to miss about 6 days. |
| Monday, March 25th, 1957 | | Atlanta Rebels: CF Dan Westphal was injured while running the bases. The Diagnosis: thumb contusion. He's expected to miss about 5 days. |
| Saturday, March 23rd, 1957 | | Chicago Hitmen: RF Félix González was injured on a defensive play. The Diagnosis: torn thumb ligament. He's expected to miss about 4 weeks. | | Atlanta Rebels: SS Mark Taylor was injured on a defensive play. The Diagnosis: strained rib cage muscle. He's expected to miss about 3 weeks. | | Detroit Bears: CF Michael Clark was injured on a defensive play. The Diagnosis: broken kneecap. He's expected to miss about 4-5 months. |
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