| | | Sunday, October 13th, 1957 | | Activated SP José García from the 60-day disabled list. | | Sunday, September 29th, 1957 | | Activated SP Brody MacFadden from the 60-day disabled list. | | Friday, September 13th, 1957 | | Activated CF Reynaldo Robles from the disabled list. | | Wednesday, September 11th, 1957 | | Activated RF Minoru Kiyomizu from the disabled list. | | Tuesday, August 13th, 1957 | | Assigned LF Kyle Horn to Triple A Brantford. | | Signed Denis Ward to a minor league contract with a signing bonus of $8,500. | | Monday, August 12th, 1957 | | Signed Jackson Mash to a minor league contract with a signing bonus of $49,200. | | Thursday, August 8th, 1957 | | Activated LF Minoru Kiyomizu from the disabled list. | | LF Kyle Horn was designated for assignment and placed on irrevocable waivers. | | Placed RF Domingo Valdés on waivers. | | Wednesday, August 7th, 1957 | | Signed Lawrence Mason to a minor league contract with a signing bonus of $5,600. | | Saturday, July 27th, 1957 | | Signed Wilson Gonzáles to a minor league contract with a signing bonus of $21,800. | | Signed Michael Whitaker to a minor league contract with a signing bonus of $3,400. | | Thursday, July 18th, 1957 | | MR Miguel Chávez was designated for assignment and placed on irrevocable waivers. | | Saturday, June 22nd, 1957 | | Activated CF Reynaldo Robles from the disabled list. | | RF Mike Mathews was designated for assignment and placed on waivers (from active). | | Wednesday, October 31st, 1956 | | Signed pitching coach Foster Prince to a 5-year, $11,200 per year contract. | |
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