Clevenger won a Boston roster spot after posting a 16-2 minor league record in 1953. He went to Washington, and was 9-9 in a league-leading 55 appearances in 1958. The Angels claimed Clevenger in the 1960 expansion draft, subsequently sending him and Bob Cerv to the Yankees in a trade for Ryne Duren. Clevenger closed his career with a 2-0 record and 2.84 ERA for the 1962 Yanks.
