| | | Saturday, September 14th, 1957 | | LF Eric Thompson was designated for assignment, placed on waivers and taken off the 40-man roster. | | Traded 22-year-old minor league center fielder José García to the Los Angeles Moguls, getting 33-year-old right fielder Mike Mathews in return. | | Thursday, September 12th, 1957 | | Activated LF Kurt Harrington from the disabled list. | | MR Chris Bergeron was designated for assignment, placed on waivers and taken off the 40-man roster. | | Friday, September 6th, 1957 | | Placed 3B Ben Anderson on waivers. | | Tuesday, August 13th, 1957 | | Signed James Smith to a minor league contract with a signing bonus of $4,300. | | Placed 3B Ben Anderson on waivers. | | Monday, August 12th, 1957 | | Signed Denny Clement to a minor league contract with a signing bonus of $12,800. | | Thursday, August 8th, 1957 | | Signed Alan Johnson to a minor league contract with a signing bonus of $32,200. | | Wednesday, July 31st, 1957 | | Signed Fernando Hernández to a minor league contract with a signing bonus of $3,600. | | Wednesday, July 24th, 1957 | | Signed António Pérez to a minor league contract with a signing bonus of $2,600. | | Monday, July 22nd, 1957 | | Signed Pedro Torres to a minor league contract with a signing bonus of $9,700. | | Sunday, June 30th, 1957 | | Signed 1st round draft pick Andre Parkinson for a signing bonus of $159,600 and a 2-year major league contract worth a total of $319,200. | | Thursday, May 2nd, 1957 | | Activated RF Millard Kaufman from the disabled list. | | LF Manuel Nava was designated for assignment and placed on irrevocable waivers. | | Sunday, March 31st, 1957 | | Placed SP Paul Dukes on the 60-day disabled list. | | Sunday, March 17th, 1957 | | Activated MR Joe Howell from the 60-day disabled list. | | Saturday, January 5th, 1957 | | Activated SP Paul Dukes from the 60-day disabled list. | | SP Martin Keene was designated for assignment and placed on irrevocable waivers. | | Wednesday, October 24th, 1956 | | Signed team doctor Jim Donaldson to a 4-year, $14,600 per year contract. | | Sunday, October 21st, 1956 | | Signed manager Greg Boone to a 5-year, $27,500 per year contract. | |
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