| Saturday, August 12th, 1978 | Activated SP Jeremy Oliver from the disabled list. | Tuesday, August 8th, 1978 | Activated RF George Morrill from the disabled list. | Monday, July 31st, 1978 | Activated 2B Bennie Burns from the disabled list. | Wednesday, July 26th, 1978 | Activated RF Rafael Hernández from the disabled list. | Saturday, July 22nd, 1978 | Activated 1B Rick Cannon from the disabled list. | Saturday, July 15th, 1978 | Placed SP Jeremy Oliver on the 15-day disabled list. | Wednesday, June 28th, 1978 | Activated CF Manuel Ordóńez from the disabled list. | Tuesday, June 27th, 1978 | Placed RF George Morrill on the 15-day disabled list. | Thursday, June 15th, 1978 | Promoted SS Eric Savage to Double A McAllen. | Promoted 3B Todd Wynn to Double A McAllen. | Received RF Luis Santos from Double A McAllen. | Placed SP Raúl López on the 15-day disabled list. | Drafted MR Eddie West in the 1978 first-year player draft (Round 6, Pick 16, 121st overall pick). | Drafted LF Javier Robles in the 1978 first-year player draft (Round 7, Pick 16, 141st overall pick). | Drafted SP Jeremy Oliver in the 1978 first-year player draft (Round 8, Pick 16, 161st overall pick). | Drafted MR Daniel Zapata in the 1978 first-year player draft (Round 9, Pick 16, 181st overall pick). | Drafted SP Lloyd Dorsey in the 1978 first-year player draft (Round 10, Pick 16, 201st overall pick). | Wednesday, June 14th, 1978 | Placed 1B Rick Cannon on the 15-day disabled list. | Tuesday, June 13th, 1978 | Placed CF Manuel Ordóńez on the 15-day disabled list. | Sunday, May 21st, 1978 | Activated LF Juan Reyes from the disabled list. | Saturday, May 20th, 1978 | Placed RF Rafael Hernández on the 15-day disabled list. | Monday, May 15th, 1978 | Activated 1B José Hall from the disabled list. | Thursday, May 11th, 1978 | Placed 2B Bennie Burns on the 15-day disabled list. | Saturday, May 6th, 1978 | Placed LF Juan Reyes on the 15-day disabled list. | Wednesday, May 3rd, 1978 | Placed CF Ronald Bodycoat on the 15-day disabled list. | Tuesday, April 11th, 1978 | Placed 1B José Hall on the 15-day disabled list. | Monday, October 3rd, 1977 | Activated MR Doug Spencer from the disabled list. | |
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