Murcer was fifth in the league in 1980 with nine sacrifice flies. Murcer cracked a two-out, two-run homer in the ninth inning on June 14, 1980, rallying the Yankees to a win over the Oakland A's. On July 4, 1980, Murcer hit a grand slam in an 11–5 rout of the Cleveland Indians. He was also credited with 13 game-winning RBIs in his first full season back from the National League. For the remaining years with the Yankees, he was reduced to a part time player ending his ability to be a star player.