| | | Saturday, June 15th, 1957 | | Drafted MR Jorge Flores in the 1957 first-year player draft (Round 7, Pick 3, 106th overall pick). | | Drafted SS León Franco in the 1957 first-year player draft (Round 8, Pick 3, 122nd overall pick). | | Drafted 3B Dwight Sims in the 1957 first-year player draft (Round 10, Pick 3, 154th overall pick). | | Promoted 2B Nick Smith to Double A San Antonio. | | Received LF Lorenzo Camacho from Double A San Antonio. | | Sunday, June 9th, 1957 | | Activated MR Leo Noble from the disabled list. | | Sunday, June 2nd, 1957 | | Placed SP Sergio Rosa on the 15-day disabled list. | | Saturday, May 25th, 1957 | | Placed MR Leo Noble on the 15-day disabled list. | | Wednesday, April 17th, 1957 | | Placed RF Andre Peters on the 15-day disabled list. | | Sunday, November 11th, 1956 | | Activated SP Jesús Castillo from the disabled list. | | Thursday, November 8th, 1956 | | Activated SP Richard Johnson from the disabled list. | | Saturday, November 3rd, 1956 | | Activated RF Juan Mallorca from the disabled list. | | Tuesday, October 23rd, 1956 | | Placed SP Jesús Castillo on the 15-day disabled list. | |
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