| Tuesday, August 19th, 1980 | Activated SP Sun Xie from the disabled list. | Monday, August 4th, 1980 | Activated 3B Henry Olson from the disabled list. | Thursday, July 31st, 1980 | Activated SP Marcos Aranda from the disabled list. | Sunday, July 20th, 1980 | Placed 3B Henry Olson on the 15-day disabled list. | Wednesday, July 16th, 1980 | Placed SP Marcos Aranda on the 15-day disabled list. | Thursday, June 26th, 1980 | Activated LF Carl Nicholson from the disabled list. | Wednesday, June 11th, 1980 | Placed LF Carl Nicholson on the 15-day disabled list. | Wednesday, April 30th, 1980 | Placed SP Sun Xie on the 15-day disabled list. | Tuesday, April 29th, 1980 | Placed 3B Bruce Simmons on the 15-day disabled list. | Saturday, September 8th, 1979 | Activated LF Carl Nicholson from the disabled list. | |
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