| Sunday, August 14th, 1966 | | RF Andrew Lawrence was injured while running the bases. The Diagnosis: hip flexor strain. This is a day-to-day injury expected to last 2 days. |
| Wednesday, August 10th, 1966 | | RF Andrew Lawrence was injured while running the bases. The Diagnosis: mild hamstring strain. This is a day-to-day injury expected to last 6 days. |
| Sunday, August 7th, 1966 | | CF Miguel Angel Díaz is ill. The Diagnosis: food poisoning. He's expected to miss about 1 day. |
| Saturday, July 2nd, 1966 | | LF William Harrison was injured while running the bases. The Diagnosis: fractured hand. He's expected to miss about 5-6 weeks. |
| Tuesday, June 21st, 1966 | | MR Jesús Hernández was injured when he tripped running down the stairs. The Diagnosis: strained hamstring. He's expected to miss about 5 weeks. |
| Saturday, June 11th, 1966 | | SP Jason Stewart was injured while pitching. The Diagnosis: hamstring soreness. He's expected to miss about 2 days. |
| Monday, May 30th, 1966 | | SS Larry Haas is ill. The Diagnosis: heat exhaustion. This is a day-to-day injury expected to last 1 day. |
| Friday, April 29th, 1966 | | 1B Rich Field is ill. The Diagnosis: flu. This is a day-to-day injury expected to last 1 day. |
| Sunday, April 17th, 1966 | | SP Roberto Rodríguez was injured while pitching. The Diagnosis: strained back. This is a day-to-day injury expected to last 4 days. |
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