| Tuesday, July 29th, 1980 | Activated LF Nick Rodgers from the disabled list. | Thursday, July 17th, 1980 | Placed SP Miguel Santiago on the 15-day disabled list. | Monday, July 14th, 1980 | Placed LF Nick Rodgers on the 15-day disabled list. | Saturday, July 12th, 1980 | Placed MR Will Miller on the 15-day disabled list. | Sunday, June 15th, 1980 | Drafted SP Jerry Harris in the 1980 first-year player draft (Round 6, Pick 14, 118th overall pick). | Drafted 2B Jeff Dawson in the 1980 first-year player draft (Round 7, Pick 14, 139th overall pick). | Drafted MR Carlos Morán in the 1980 first-year player draft (Round 8, Pick 14, 159th overall pick). | Drafted SP Jonathan Calvin in the 1980 first-year player draft (Round 9, Pick 14, 179th overall pick). | Drafted MR Larry Dunn in the 1980 first-year player draft (Round 10, Pick 14, 199th overall pick). | Promoted LF Gabe Sweeney to Double A Harlingen. | Wednesday, May 7th, 1980 | Activated MR Will Miller from the disabled list. | Tuesday, April 22nd, 1980 | Placed MR Will Miller on the 15-day disabled list. | Saturday, October 20th, 1979 | Activated SS Joe Dunn from the disabled list. | |
|