| Wednesday, August 20th, 1980 | Activated RF Matt Miller from the disabled list. | Saturday, May 10th, 1980 | Placed SP Caden Boyd on the 15-day disabled list. | Thursday, January 17th, 1980 | Activated SP Manuel Martínez from the disabled list. | Friday, December 7th, 1979 | Activated C Ralph Cobb from the disabled list. | Tuesday, October 2nd, 1979 | Activated SP Ed Larsen from the disabled list. | Saturday, August 25th, 1979 | RF Liang Wang retires. | Signed Hitting Coach José Ramírez to a 1-year contract extension. | |
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