| Friday, September 22nd, 1978 | Activated CF José Saldaña from the disabled list. | Tuesday, September 12th, 1978 | Activated 2B Ricardo Sánchez from the 60-day disabled list. | Friday, September 8th, 1978 | Activated 2B Masaharu Koumura from the disabled list. | Wednesday, August 30th, 1978 | Activated SP John Lancaster from the 60-day disabled list. | SP León Valadez was designated for assignment, placed on waivers and taken off the 40-man roster. | Monday, August 14th, 1978 | Failed to sign 10th round draft pick Manny Baltiérrez. | Sunday, August 13th, 1978 | Signed Carlos Salazar to a minor league contract with a signing bonus of $12,400. | Thursday, August 10th, 1978 | Signed Mauro Vásquez to a minor league contract with a signing bonus of $37,400. | Signed Wilford Collins to a minor league contract with a signing bonus of $16,500. | Wednesday, August 9th, 1978 | Signed Lance Rollo to a minor league contract with a signing bonus of $50,200. | Thursday, August 3rd, 1978 | MR Phil Wood was designated for assignment, placed on waivers and taken off the 40-man roster. | Wednesday, July 12th, 1978 | Signed Wade Barnes to a minor league contract with a signing bonus of $129,500. | Monday, April 3rd, 1978 | Placed RF Nam-cheol Kim on the 9-day disabled list. | Sunday, April 2nd, 1978 | Placed MR Sam Wolfe on the 9-day disabled list. | Thursday, November 10th, 1977 | Signed bench coach Cecil Ainsley to a 5-year, $41,700 per year contract. | Sunday, October 9th, 1977 | Signed hitting coach Luis Castro to a 5-year, $101,900 per year contract. | |
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