| Wednesday, August 22nd, 1979 | Activated 2B Garland Higgins from the disabled list. | Saturday, August 18th, 1979 | Activated LF Mike Clark from the disabled list. | Friday, July 20th, 1979 | Placed LF Mike Clark on the 15-day disabled list. | Thursday, July 19th, 1979 | Activated LF Mike Clark from the disabled list. | Saturday, June 23rd, 1979 | Placed LF Mike Clark on the 15-day disabled list. | Sunday, June 10th, 1979 | Activated RF Denis Girard from the disabled list. | Friday, May 25th, 1979 | Activated RF Pancho Vega from the disabled list. | Tuesday, May 22nd, 1979 | Placed RF Denis Girard on the 15-day disabled list. | Monday, April 23rd, 1979 | Placed RF Mike Clark on the 15-day disabled list. | Thursday, April 19th, 1979 | Placed MR Matt Martin on the 15-day disabled list. | Saturday, April 14th, 1979 | Placed RF Pancho Vega on the 15-day disabled list. | Monday, November 20th, 1978 | Activated SP Charlie Taylor from the disabled list. | Sunday, November 12th, 1978 | Activated C Carl Dempsey from the disabled list. | Saturday, October 28th, 1978 | Placed C Carl Dempsey on the 15-day disabled list. | Monday, August 28th, 1978 | SP Mike Decker retires. | Signed Manager Raúl Ruíz to a 2-year contract extension. | |
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