| Thursday, September 22nd, 1955 | Activated CF Héctor Soto from the disabled list. | Tuesday, September 20th, 1955 | Activated 2B Chris Small from the 60-day disabled list. | 3B David Hansen was designated for assignment, placed on waivers and taken off the 40-man roster. | Friday, September 16th, 1955 | Activated CF George Bissett from the 60-day disabled list. | MR Andrew Burdick was designated for assignment, placed on waivers and taken off the 40-man roster. | Monday, September 12th, 1955 | Activated 3B Francisco Mojica from the 60-day disabled list. | MR Rob Smith was designated for assignment, placed on waivers and taken off the 40-man roster. | Tuesday, September 6th, 1955 | Placed CF Emílio Rodríguez on the 15-day disabled list. | Saturday, August 13th, 1955 | Signed Cameron Lapthorne to a minor league contract with a signing bonus of $21,200. | Thursday, August 11th, 1955 | Signed Skip Lane to a minor league contract with a signing bonus of $8,200. | Wednesday, August 10th, 1955 | Signed Gordon Elmore to a minor league contract with a signing bonus of $28,000. | Tuesday, August 9th, 1955 | Signed Walt Robbins to a minor league contract with a signing bonus of $4,000. | Sunday, July 31st, 1955 | Signed Bob Bell to a minor league contract with a signing bonus of $4,800. | Monday, July 11th, 1955 | Signed Brad Green to a minor league contract with a signing bonus of $16,500. | Monday, May 9th, 1955 | Placed SP Cris Guerra on the 60-day disabled list. | Wednesday, April 13th, 1955 | Placed 2B Gerald Gray on the 60-day disabled list. | Sunday, April 3rd, 1955 | Placed 2B Chris Small on the 60-day disabled list. | Activated SP Dennis White from the 60-day disabled list. | Saturday, October 30th, 1954 | Signed hitting coach Weldon O'Herlihy to a 4-year, $8,600 per year contract. | |
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