| Sunday, December 9th, 1956 | | 1B Carlos Leal was injured while falling off the stage at an Awards Ceremony. The Diagnosis: mild shoulder strain. He's expected to miss about one week. |
| Friday, November 9th, 1956 | | Miguel Gonzáles has suffered a setback in his recovery. He is not expected to recover for another 5 months. |
| Friday, September 28th, 1956 | | 3B Lorenzo Sánz was injured while throwing the ball. The Diagnosis: biceps strain. He's expected to miss about 6 weeks. |
| Thursday, September 27th, 1956 | | LF Mark Green was injured while running the bases. The Diagnosis: strained medial collateral ligament. He's expected to miss about 6 weeks. |
| Tuesday, September 25th, 1956 | | Héctor Alaniz has suffered a setback in his recovery. He is not expected to recover for another 6 days. |
| Tuesday, September 11th, 1956 | | CF Arturo Reyes was injured while stealing a base. The Diagnosis: strained Achilles tendon. He's expected to miss about 2 weeks. |
| Wednesday, September 5th, 1956 | | SS Lorenzo Sánz was injured in a collision at a base. The Diagnosis: mild hamstring strain. This is a day-to-day injury expected to last one week. |
| Sunday, August 19th, 1956 | | SS Héctor Alaniz was injured on a defensive play. The Diagnosis: partially torn labrum. He's expected to miss about 5-6 weeks. |
| Friday, August 17th, 1956 | | SS Alexandre Lespérance was injured while throwing the ball. The Diagnosis: shoulder tendinitis. He's expected to miss about 5 weeks. |
| Tuesday, August 14th, 1956 | | SS Lorenzo Sánz was injured while running the bases. The Diagnosis: strained abdominal muscle. He's expected to miss about 2 weeks. |
| Tuesday, July 31st, 1956 | | SP Oliver Delgado was injured while pitching. The Diagnosis: partially torn labrum. He's expected to miss about 4 months. |
| Wednesday, July 18th, 1956 | | LF Mark Green was injured while running the bases. The Diagnosis: oblique strain. He's expected to miss about 3 weeks. | | MR Nick Carr was injured while pitching. The Diagnosis: torn triceps. He's expected to miss about 4 months. |
| Friday, June 22nd, 1956 | | SS Alexandre Lespérance was injured in a collision at a base. The Diagnosis: herniated disc (back). This is a day-to-day injury expected to last 6 days. |
| Wednesday, May 23rd, 1956 | | SP Juan Lerma was injured while pitching. The Diagnosis: elbow soreness. He's expected to miss about 4 weeks. |
| Sunday, May 20th, 1956 | | LF Mark Green was injured on a defensive play. The Diagnosis: ankle soreness. He's expected to miss about 2 weeks. |
| Tuesday, May 15th, 1956 | | C José Souza was injured while running the bases. The Diagnosis: bruised back. This is a day-to-day injury expected to last 5 days. |
| Thursday, May 3rd, 1956 | | 1B Patrick Berry was injured while throwing the ball. The Diagnosis: oblique strain. He's expected to miss about 2-3 weeks. |
| Sunday, April 29th, 1956 | | SP Truman Saunders was injured while pitching. The Diagnosis: mild calf strain. This is a day-to-day injury expected to last 1 day. |
| Friday, April 27th, 1956 | | SS Alexandre Lespérance was injured while running the bases. The Diagnosis: chronic back soreness. He's expected to miss about 5 weeks. |
| Sunday, April 22nd, 1956 | | CL Miguel Gonzáles was injured while pitching. The Diagnosis: partially torn UCL (Tommy John surgery). He's expected to miss about 9 months. |
| Monday, April 9th, 1956 | | MR Juan Lerma was injured while pitching. The Diagnosis: sprained ankle. This is a day-to-day injury expected to last one week. |
| Friday, March 30th, 1956 | | MR Glenn Loiselle is ill. The Diagnosis: strep throat. He's expected to miss about 3 days. |
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