| Sunday, April 12th, 1981 | Placed SP Ted Lamoreaux on the Golden Horseshoe League 15-day disabled list. | Tuesday, April 7th, 1981 | Placed 1B Nathan Raymond on the 9-day disabled list. | Monday, December 1st, 1980 | 2B Pablo Wagner was designated for assignment, placed on waivers and taken off the 40-man roster. | 3B Norris Huffman was placed on the 40-man roster. | Monday, November 17th, 1980 | Activated SP Félix Cortés from the 60-day disabled list. | SP Ted Lamoreaux was designated for assignment and placed on waivers (from active). | SP Ted Lamoreaux was removed from the 40-man roster. | Friday, October 31st, 1980 | Activated CF Lucas Avery from the 60-day disabled list. | LF Alfred Williams was designated for assignment and placed on waivers (from active). | LF Alfred Williams was removed from the 40-man roster. | Placed RF Tom Kline on the South Texas League 15-day disabled list. | Tuesday, October 21st, 1980 | Activated LF Zach Wakeham from the disabled list. | LF Alfred Williams was designated for assignment and placed on waivers (from active). | LF Alfred Williams was removed from the 40-man roster. | Saturday, October 11th, 1980 | Activated SP Mark Isobel from the disabled list. | MR Lachlan Bethune was designated for assignment and placed on waivers (from active). | MR Lachlan Bethune was removed from the 40-man roster. | Tuesday, September 30th, 1980 | Signed SP Noah Cutler to a minor league contract. | |
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