| Monday, August 18th, 1980 | Placed 3B Mark Kelly on the 15-day disabled list. | Friday, July 18th, 1980 | Placed CF Allen Brock on the 15-day disabled list. | Friday, June 27th, 1980 | Placed SP Brady Miller on the 15-day disabled list. | Sunday, June 15th, 1980 | Drafted 2B Chris Mullins in the 1980 first-year player draft (Round 6, Pick 19, 123rd overall pick). | Drafted SS Felipe Medina in the 1980 first-year player draft (Round 7, Pick 19, 144th overall pick). | Drafted C Lee Baker in the 1980 first-year player draft (Round 8, Pick 19, 164th overall pick). | Drafted C Roy LaFollette in the 1980 first-year player draft (Round 9, Pick 19, 184th overall pick). | Drafted C Juan Rivera in the 1980 first-year player draft (Round 10, Pick 19, 204th overall pick). | Promoted C Ron Alston to Double A Edna. | Promoted LF Juan Luna to Double A Edna. | Thursday, May 29th, 1980 | Activated 3B Dave Sexton from the disabled list. | Wednesday, May 28th, 1980 | Activated RF Christian Bean from the disabled list. | Wednesday, May 7th, 1980 | Placed CF Allen Brock on the 15-day disabled list. | Saturday, May 3rd, 1980 | Placed RF Christian Bean on the 15-day disabled list. | Monday, April 28th, 1980 | Placed 3B José Benítez on the 15-day disabled list. | Saturday, April 19th, 1980 | Placed 3B Dave Sexton on the 15-day disabled list. | Friday, November 9th, 1979 | Activated 1B Darryl Bolton from the disabled list. | Friday, September 7th, 1979 | Activated CF Christian Bean from the disabled list. | Monday, September 3rd, 1979 | Activated CF Joe Rodgers from the disabled list. | Thursday, August 23rd, 1979 | Signed Manager José Rivera to a 3-year contract extension. | Signed Hitting Coach Jonathan Park to a 1-year contract extension. | |
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