Tresh, the son of former ML catcher Mike Tresh, was AL Rookie of the Year in 1962 when he hit .286, with 20 home runs and 93 RBI, as a switch-hitting Yankee shortstop when Tony Kubek was in military service. Moved to left field in 1963 when Kubek returned, he continued to hit homers, three times topping 25, but his batting average declined steadily. On September 1, 1963 he became only the eighth player to homer from each side of the plate in a single game. He accomplished that feat twice more in his career, including a June 6, 1965 doubleheader when he hit four home runs, three in the nightcap. A damaged knee in 1967 hastened the end of his career.