| Sunday, August 13th, 1978 | Activated 3B Dave Sexton from the disabled list. | Monday, August 7th, 1978 | Activated C Carl Dempsey from the disabled list. | Friday, August 4th, 1978 | Activated 2B Rafael Sierra from the disabled list. | Saturday, July 15th, 1978 | Activated CF Cecil Johnston from the disabled list. | Thursday, July 13th, 1978 | Placed C Carl Dempsey on the 15-day disabled list. | Monday, July 3rd, 1978 | Activated RF Pancho Vega from the disabled list. | Thursday, June 15th, 1978 | Placed RF Pancho Vega on the 15-day disabled list. | Drafted LF Joe Rodgers in the 1978 first-year player draft (Round 6, Pick 17, 122nd overall pick). | Drafted 2B Jason Ellison in the 1978 first-year player draft (Round 7, Pick 17, 142nd overall pick). | Drafted 1B Rob Moon in the 1978 first-year player draft (Round 8, Pick 17, 162nd overall pick). | Drafted SP Hoyt Sharp in the 1978 first-year player draft (Round 9, Pick 17, 182nd overall pick). | Drafted MR Pete Bergeron in the 1978 first-year player draft (Round 10, Pick 17, 202nd overall pick). | Tuesday, May 30th, 1978 | Placed 3B Dave Sexton on the 15-day disabled list. | Friday, May 5th, 1978 | Activated 2B Jorge Salas from the disabled list. | Saturday, April 15th, 1978 | Placed 2B Jorge Salas on the 15-day disabled list. | Sunday, November 20th, 1977 | Activated MR Tomás Roa from the disabled list. | Tuesday, October 25th, 1977 | Placed MR Tomás Roa on the 15-day disabled list. | Thursday, August 25th, 1977 | Signed Pitching Coach Steve Perkins to a 3-year contract extension. | Signed Hitting Coach Jonathan Park to a 1-year contract extension. | Activated RF R.J. Stewart from the disabled list. | |
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