| Saturday, September 27th, 1980 | Activated SP Gil Downing from the 60-day disabled list. | Monday, August 25th, 1980 | Activated LF Tomás Estrada from the disabled list. | LF Dan Weber was designated for assignment and placed on waivers (from active). | Thursday, August 14th, 1980 | Failed to sign 3rd round draft pick Robby Vickers. | Wednesday, August 13th, 1980 | Signed Claudio Gutiérrez to a minor league contract with a signing bonus of $223,500. | Saturday, August 9th, 1980 | Signed Scott Murdock to a minor league contract with a signing bonus of $886,900. | Friday, August 8th, 1980 | Signed António Gonzáles to a minor league contract with a signing bonus of $75,700. | Saturday, August 2nd, 1980 | Signed Ryan Oliver to a minor league contract with a signing bonus of $83,200. | Wednesday, June 25th, 1980 | Signed John Murphy to a minor league contract with a signing bonus of $29,300. | |
|