| Monday, August 18th, 1980 | | SP Dave Meredith was injured while pitching. The Diagnosis: mild calf strain. This is a day-to-day injury expected to last 1 day. |
| Thursday, July 17th, 1980 | | 2B Nelson Limón was injured while throwing the ball. The Diagnosis: sprained ankle. This is a day-to-day injury expected to last 6 days. |
| Tuesday, July 15th, 1980 | | 1B Jack Shannon was injured in a collision at a base. The Diagnosis: mild shoulder strain. He's expected to miss about 3 days. |
| Sunday, July 6th, 1980 | | SP Salvador García was injured while pitching. The Diagnosis: sore thumb. This is a day-to-day injury expected to last 2 days. |
| Saturday, July 5th, 1980 | | SP Brandon González was injured while pitching. The Diagnosis: back tightness. This is a day-to-day injury expected to last 3 days. |
| Saturday, June 21st, 1980 | | SS Earl Quick was injured in a collision at a base. The Diagnosis: strained hamstring. He's expected to miss about 3 months. |
| Friday, June 20th, 1980 | | 1B Leland Rigney was injured on a defensive play. The Diagnosis: torn labrum (Shoulder). He's expected to miss about 4-5 months. |
| Friday, June 13th, 1980 | | SP Dave Meredith was injured while pitching. The Diagnosis: back soreness. He's expected to miss about 2 weeks. |
| Friday, May 23rd, 1980 | | SP Luis Cruz was injured while pitching. The Diagnosis: tender shoulder. This is a day-to-day injury expected to last 4 days. |
| Wednesday, May 21st, 1980 | | 1B Leland Rigney is ill. The Diagnosis: earache. This is a day-to-day injury expected to last 3 days. |
| Monday, May 12th, 1980 | | Dave Meredith has suffered a setback in his recovery. He is not expected to recover for another one week. |
| Saturday, May 10th, 1980 | | SP José Ledezma was injured while pitching. The Diagnosis: strained back. This is a day-to-day injury expected to last 2 weeks. |
| Saturday, May 3rd, 1980 | | SP Salvador García was injured while pitching. The Diagnosis: flexor-pronator strain (elbow). He's expected to miss about 4 weeks. |
| Thursday, May 1st, 1980 | | SP Dave Meredith was injured while pitching. The Diagnosis: strained oblique. He's expected to miss about 3 weeks. |
| Tuesday, April 15th, 1980 | | 3B Bill Cook was injured while running the bases. The Diagnosis: bruised wrist. This is a day-to-day injury expected to last 2 days. |
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