| Wednesday, August 20th, 1980 | Placed RF Oscar Bush on the 15-day disabled list. | Monday, August 11th, 1980 | Received RF Oscar Bush from Major League Level Boston. | Thursday, August 7th, 1980 | Placed LF Noburo Hashimoto on the 15-day disabled list. | Wednesday, July 16th, 1980 | Activated LF Christian Neale from the disabled list. | Wednesday, June 25th, 1980 | Activated SP Stanley Edwards from the disabled list. | Thursday, June 12th, 1980 | Activated 2B José Zapata from the disabled list. | Tuesday, May 20th, 1980 | Activated RF Dane Howard from the disabled list. | Sunday, May 18th, 1980 | Placed 2B José Zapata on the 15-day disabled list. | Monday, May 5th, 1980 | Placed RF Dane Howard on the 15-day disabled list. | Thursday, February 21st, 1980 | Received 3B José Zapata from Major League Level Boston. | Saturday, January 26th, 1980 | Activated RF Millard Chase from the disabled list. | Monday, November 26th, 1979 | Received MR John Estes from Major League Level Boston. | Thursday, October 4th, 1979 | Activated SP Pedro Flores from the disabled list. | Monday, September 3rd, 1979 | Signed Manager Dave Wardlaw to a 3-year contract extension. | |
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