| | | Sunday, September 21st, 1980 | | Activated 3B Larry McCluney from the disabled list. | | Saturday, September 13th, 1980 | | Placed 3B David Bell on the 9-day disabled list. | | Saturday, September 6th, 1980 | | Placed 3B Larry McCluney on the 9-day disabled list. | | Wednesday, August 13th, 1980 | | Signed Jerry Williams to a minor league contract with a signing bonus of $66,300. | | Saturday, August 9th, 1980 | | Signed Eric Hall to a minor league contract with a signing bonus of $152,100. | | Friday, August 8th, 1980 | | Signed Craig Miller to a minor league contract with a signing bonus of $47,700. | | Thursday, July 17th, 1980 | | Activated SS Jorge Feliciano from the 60-day disabled list. | | 3B Manny Pérez was designated for assignment and placed on waivers (from active). | | Tuesday, June 24th, 1980 | | Signed Jamal Crocker to a minor league contract with a signing bonus of $180,100. | | Monday, March 31st, 1980 | | Placed C Matt Peterson on the 9-day disabled list. | | Monday, March 10th, 1980 | | Activated MR Javier Ortíz from the 60-day disabled list. | | MR Jarrod Rose was designated for assignment, placed on waivers and taken off the 40-man roster. | | Friday, February 15th, 1980 | | Activated MR Johnny Shelton from the 60-day disabled list. | | MR Bob Joyner was designated for assignment, placed on waivers and taken off the 40-man roster. | |
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