That was 1967 when hit .326, had 44 home runs and 121 RBIs.
1967. Yaz won the American League Triple Crown in 1967 with a .326 batting average, 44 home runs, and 121 RBIs.
Frank Robinson of the Baltimore Orioles won it in 1966.
A batting triple crown winner is a player who leads the league in batting average, home runs, and runs batted in.
In 1948