| Thursday, September 11th, 1980 | Placed LF Chia-ch'ing Mo on the 9-day disabled list. | Friday, August 15th, 1980 | Activated 1B Mo Tsou from the disabled list. | 1B Jesús Galló was designated for assignment and placed on waivers (from active). | Thursday, August 14th, 1980 | Failed to sign 2nd round draft pick Eduardo Mindiola. | Wednesday, August 13th, 1980 | Signed Bob Smith to a minor league contract with a signing bonus of $44,000. | Sunday, August 10th, 1980 | Signed David Tate to a minor league contract with a signing bonus of $169,700. | Friday, August 8th, 1980 | Signed Jon West to a minor league contract with a signing bonus of $324,200. | Thursday, August 7th, 1980 | Signed Cristián Rodríguez to a minor league contract with a signing bonus of $40,800. | Tuesday, July 1st, 1980 | Signed Greg Edwards to a minor league contract with a signing bonus of $280,000. | Sunday, June 15th, 1980 | Purchased the contract of LF Christian Mitchell from Triple A Keswick. | RF Jack Martin was designated for assignment, placed on waivers and taken off the 40-man roster. | Monday, April 7th, 1980 | Activated SS Rodrigo Ramos from the disabled list. | Thursday, March 27th, 1980 | Placed SS Rodrigo Ramos on the 9-day disabled list. | Friday, March 21st, 1980 | Activated RF Don Miles from the 60-day disabled list. | MR Joe Christopher was designated for assignment, placed on waivers and taken off the 40-man roster. | Thursday, February 21st, 1980 | Assigned 1B Mo Tsou to Triple A Keswick. | Tuesday, October 30th, 1979 | Signed hitting coach Daniel Villegas to a 5-year, $42,600 per year contract. | |
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