| Thursday, April 9th, 1981 |
| Received MR Francisco Cantú from Major League Level Chicago. |
| Received MR Tony Alonzo from Major League Level Chicago. |
| Received MR Tolentino Coruche from Major League Level Chicago. |
| Received MR Steve Miles from Major League Level Chicago. |
| Received C Warren Hudson from Major League Level Chicago. |
| Received C António Fanete from Major League Level Chicago. |
| Received 1B Javier Ríos from Major League Level Chicago. |
| Received 2B Ramón Núñes from Major League Level Chicago. |
| Received 1B Bartolo Franco from Major League Level Chicago. |
| Received 3B Chet O'Day from Major League Level Chicago. |
| Received LF Shaun Lee from Major League Level Chicago. |
| Received 1B William Wilson from Major League Level Chicago. |
| Received 1B Michael Mitchell from Major League Level Chicago. |
| Received SS Tyler Forrest from Major League Level Chicago. |
| Demoted MR Ieyoshi Nishikawa to Double A Eagle Pass. |
| Demoted C Bernardo Cortés to Double A Eagle Pass. |
| Demoted 1B Xuan-ling Xiu to Double A Eagle Pass. |
| Demoted 2B Ricardo Chávez to Double A Eagle Pass. |
| Demoted 3B Ju-hyung Chin to Double A Eagle Pass. |
| Demoted 3B Leonard Marshall to Double A Eagle Pass. |
| Demoted LF Michael Thomas to Double A Eagle Pass. |
| Demoted SS Jesse Stewart to Double A Eagle Pass. |
| Received SP José Sánchez from Double A Eagle Pass. |
| Demoted MR Steve Miles to Double A Eagle Pass. |
