| Wednesday, September 27th, 1978 | Activated CF Danny White from the disabled list. | Friday, September 22nd, 1978 | Activated 1B Michael Mitchell from the disabled list. | Tuesday, September 12th, 1978 | Placed 1B Michael Mitchell on the 9-day disabled list. | Monday, September 11th, 1978 | Activated C Scott Patton from the 60-day disabled list. | MR Kumanosuke Ageda was designated for assignment, placed on waivers and taken off the 40-man roster. | Saturday, September 9th, 1978 | Placed RF Ryan Coleman on waivers. | Thursday, September 7th, 1978 | Activated LF Scott Anderson from the 60-day disabled list. | 3B Aaron Sharp was designated for assignment, placed on waivers and taken off the 40-man roster. | Monday, August 14th, 1978 | Failed to sign 1st round draft pick Will Anderson. | Thursday, August 10th, 1978 | Signed Nick Wooten to a minor league contract with a signing bonus of $25,400. | Saturday, July 29th, 1978 | Signed José Sánchez to a minor league contract with a signing bonus of $43,200. | Saturday, July 22nd, 1978 | Signed Matt Forrest to a minor league contract with a signing bonus of $13,800. | Sunday, July 2nd, 1978 | Activated SP Manny Álvarez from the disabled list. | SP Guillermo García was designated for assignment and placed on waivers (from active). | Saturday, June 17th, 1978 | Signed José Rivera to a minor league contract with a signing bonus of $218,000. | Wednesday, April 12th, 1978 | Placed C Scott Patton on the 60-day disabled list. | Friday, November 4th, 1977 | Signed free agent 3B Tom O'Neill to a 1-year contract worth a total of $47,900. | Demoted 2B Chet O'Day to Triple A Uxbridge. | |
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