| | | Sunday, October 12th, 1958 | | Activated SS Luis Ruíz from the disabled list. | | Saturday, September 27th, 1958 | | Placed SS Luis Ruíz on the 15-day disabled list. | | Sunday, September 14th, 1958 | | Placed LF Jeff Smith on the 15-day disabled list. | | Sunday, September 7th, 1958 | | Activated SS Luis Ruíz from the disabled list. | | Saturday, September 6th, 1958 | | Activated LF Emílio Rodríguez from the 60-day disabled list. | | Tuesday, August 19th, 1958 | | Activated RF Miguel Villegas from the disabled list. | | LF Dale Newman was designated for assignment and placed on waivers (from active). | | Wednesday, August 13th, 1958 | | Signed Ricardo Morán to a minor league contract with a signing bonus of $9,500. | | Monday, August 11th, 1958 | | Signed José Luna to a minor league contract with a signing bonus of $98,600. | | Signed Jorge Morán to a minor league contract with a signing bonus of $15,900. | | Signed Pete Collins to a minor league contract with a signing bonus of $4,500. | | Thursday, August 7th, 1958 | | Signed Craig Jones to a minor league contract with a signing bonus of $7,100. | | Sunday, July 27th, 1958 | | Activated C Trevor Batstone from the disabled list. | | C Greg Quinn was designated for assignment and placed on irrevocable waivers. | | Wednesday, May 21st, 1958 | | MR Robbie Morris was designated for assignment and placed on waivers (from active). | | Saturday, May 17th, 1958 | | Placed LF Emílio Rodríguez on the 60-day disabled list. | | Friday, October 25th, 1957 | | Signed hitting coach Tom Butler to a 5-year, $9,100 per year contract. | |
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