| Wednesday, August 23rd, 1978 | Placed 2B Wilson Rodríguez on the 15-day disabled list. | Sunday, August 20th, 1978 | Activated 1B José Gómez from the disabled list. | Friday, May 19th, 1978 | Placed 1B José Gómez on the 15-day disabled list. | Friday, May 5th, 1978 | Activated 1B Keith Mansvelt from the disabled list. | Thursday, September 29th, 1977 | Activated MR António Sierra from the disabled list. | Wednesday, September 21st, 1977 | Signed pitching coach Tomás Ibarra. | Sunday, September 18th, 1977 | Activated LF David Wolf from the disabled list. | Monday, September 12th, 1977 | Activated 1B Keith Mansvelt from the disabled list. | Wednesday, September 7th, 1977 | Activated CF Ju-ao Loong from the disabled list. | |
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