| Tuesday, September 6th, 1955 | | 2B Bob Thompson was injured while throwing the ball. The Diagnosis: partially torn labrum. He's expected to miss about 5 weeks. | | 3B Ken Anderson was injured while running the bases. The Diagnosis: knee soreness. He's expected to miss about 3 days. |
| Monday, September 5th, 1955 | | 1B Jerry Garfield was injured being hit by a pitch. The Diagnosis: bruised thigh. This is a day-to-day injury expected to last 4 days. |
| Monday, June 27th, 1955 | | CF Víctor Martínez was injured while running the bases. The Diagnosis: sore knee. This is a day-to-day injury expected to last 1 day. |
| Friday, June 10th, 1955 | | 2B Pedro Reyes was injured while running the bases. The Diagnosis: mild hip strain. This is a day-to-day injury expected to last one week. |
| Tuesday, May 31st, 1955 | | 3B Pedro Reyes was injured while running the bases. The Diagnosis: thigh muscle strain. This is a day-to-day injury expected to last 4 days. |
| Wednesday, May 4th, 1955 | | SP David Hatfield was injured while sliding on the tarp during the rain at practice. The Diagnosis: ankle soreness. He's expected to miss about one week. |
| Monday, April 25th, 1955 | | CL José Núñez was injured while pitching. The Diagnosis: oblique strain. He's expected to miss about 3 weeks. |
| Wednesday, April 20th, 1955 | | SP David Hatfield was injured while pitching. The Diagnosis: forearm soreness. This is a day-to-day injury expected to last 4 days. |
| Monday, April 11th, 1955 | | MR Mitsunari Kouki was injured while pitching. The Diagnosis: sore shoulder. He's expected to miss about 6 days. |
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