| Thursday, April 9th, 1981 |
| Promoted LF Ramiro Hernández to Double A Corpus Christi. |
| Received MR Pedro Rivera from Double A Corpus Christi. |
| Received RF Reynaldo López from Double A Corpus Christi. |
| Signed free agent C Alex Kirby to a minor league contract. |
| Signed free agent C Jesús Rúbio to a minor league contract. |
| Signed free agent 3B Randolph Beck to a minor league contract. |
| Signed free agent 3B Bruce Reese to a minor league contract. |
| Signed free agent 3B Luis Estronza to a minor league contract. |
| Signed free agent LF Domingo Arreola to a minor league contract. |
| Signed free agent RF Dan Mitchell to a minor league contract. |
| Signed free agent RF Juan García to a minor league contract. |
| Promoted MR Luis Orozco to Double A Corpus Christi. |
| Promoted C Alex Kirby to Double A Corpus Christi. |
| Promoted C Jesús Rúbio to Double A Corpus Christi. |
| Promoted 3B Randolph Beck to Double A Corpus Christi. |
| Promoted 3B Luis Estronza to Double A Corpus Christi. |
| Promoted RF Juan García to Double A Corpus Christi. |
| Received SP Lou Stephenson from Double A Corpus Christi. |
| Received C Enrico Marín from Double A Corpus Christi. |
| Received C Dave Mack from Double A Corpus Christi. |
| Received RF Ed Bryant from Double A Corpus Christi. |
| Received LF Ramiro Hernández from Double A Corpus Christi. |
| Received LF José Vargas from Double A Corpus Christi. |
