League current injuries -- American League
Regular season -- as of 9/14/1977
| Injuries |
|   |   |   |   |   | Duration |
| Date | Team | Name | Cause | Return | Orig | Left |
| 9/5/1977 | WWM | Henderson,K | General | 10/1/1977 | 26 | 17 |
| 9/5/1977 | NYM | Willoughby | General | 10/1/1977 | 26 | 17 |
| 9/14/1977 | WWM | Hood | General | 10/1/1977 | 17 | 17 |
| 8/14/1977 | DAY | Clancy | General | 10/1/1977 | 48 | 17 |
| 9/14/1977 | WWM | Sexton | General | 10/1/1977 | 17 | 17 |
| 9/14/1977 | ELE | Alexander,D | General | 10/1/1977 | 17 | 17 |
| 8/28/1977 | GLA | Frost | General | 10/1/1977 | 34 | 17 |
| 8/20/1977 | NYM | Serum | General | 10/1/1977 | 42 | 17 |
| 9/14/1977 | ELE | Frias | General | 10/1/1977 | 17 | 17 |
| 9/5/1977 | COL | Whitson | General | 10/1/1977 | 26 | 17 |