| Tuesday, August 15th, 1978 | | C Edgardo Villa was injured in a collision at a base. The Diagnosis: torn thumb ligament. He's expected to miss about 3 weeks. |
| Wednesday, August 9th, 1978 | | 2B Len Conner was injured in a collision at a base. The Diagnosis: chronic back soreness. He's expected to miss about 3 weeks. |
| Monday, August 7th, 1978 | | SP Jorge Cruz was injured while pitching. The Diagnosis: sore back. This is a day-to-day injury expected to last 3 days. |
| Tuesday, July 25th, 1978 | | RF José Vargas is ill. The Diagnosis: diverticulitis. He's expected to miss about 5 days. |
| Sunday, July 23rd, 1978 | | SP Alberto Guerra was injured while pitching. The Diagnosis: partially torn labrum. He's expected to miss about 3 months. |
| Thursday, July 20th, 1978 | | LF Reynaldo López was injured while running the bases. The Diagnosis: back soreness. He's expected to miss about 5 days. |
| Friday, July 14th, 1978 | | RF Gordon Shanahan was injured while throwing the ball. The Diagnosis: mild abdominal strain. This is a day-to-day injury expected to last 2 days. |
| Saturday, July 8th, 1978 | | MR Sergio Montés was injured while pitching. The Diagnosis: elbow strain. He's expected to miss about 2-3 months. |
| Friday, June 30th, 1978 | | RF Alberto Marrero was injured on a defensive play. The Diagnosis: torn thumb ligament. He's expected to miss about 3-4 weeks. |
| Thursday, June 22nd, 1978 | | MR Luis Orozco is ill. The Diagnosis: nausea. He's expected to miss about 4 days. |
| Tuesday, June 20th, 1978 | | 2B Jesús Méndez was injured while throwing the ball. The Diagnosis: back stiffness. This is a day-to-day injury expected to last 1 day. |
| Thursday, June 1st, 1978 | | SP Erjan Jans was injured while pitching. The Diagnosis: wrist soreness. This is a day-to-day injury expected to last 1-2 weeks. |
| Tuesday, May 30th, 1978 | | 2B Jeff Gibson was injured while running the bases. The Diagnosis: intercostal strain. He's expected to miss about 5 days. |
| Monday, May 29th, 1978 | | 2B Jesús Méndez was injured in a collision at a base. The Diagnosis: oblique strain. He's expected to miss about 2 weeks. |
| Friday, May 19th, 1978 | | SP Erjan Jans was injured while pitching. The Diagnosis: elbow inflammation. He's expected to miss about one week. |
| Friday, May 5th, 1978 | | 1B Rob Eckersley was injured on a defensive play. The Diagnosis: separated shoulder. He's expected to miss about 3-4 weeks. |
| Saturday, April 29th, 1978 | | CF Carlos Maez was injured while running the bases. The Diagnosis: mild calf strain. This is a day-to-day injury expected to last 5 days. |
| Monday, April 17th, 1978 | | MR Sergio Montés was injured while pitching. The Diagnosis: mild hamstring strain. This is a day-to-day injury expected to last 2 days. |
| Saturday, April 15th, 1978 | | 3B Ronald O'Cune was injured while running the bases. The Diagnosis: strained quadriceps. This is a day-to-day injury expected to last one week. |
| Friday, April 14th, 1978 | | CF Carlos Maez was injured on a defensive play. The Diagnosis: oblique strain. He's expected to miss about one week. | | SP Charlie van Rensselaer was injured while pitching. The Diagnosis: shoulder inflammation. He's expected to miss about 4 months. |
| Thursday, April 13th, 1978 | | 3B Ricardo Sánchez was injured while running the bases. The Diagnosis: hip flexor strain. He's expected to miss about 2 weeks. |
| Thursday, April 6th, 1978 | | 3B Jeff Gibson was injured being hit by a pitch. The Diagnosis: fractured foot. He's expected to miss about 3 weeks. |
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