 In 1941, he hit well above .300 until the final month of the season before tapering off to end the year with a .287 average in 67 games as, the Yankees won the American League pennant by 17 games over the Boston Red Sox.Rosar made only one appearance in the 1941 World Series as a late-inning defensive replacement for Dickey in Game 2 as, the Yankees went on to defeat the Brooklyn Dodgers in five games.Despite being a second string catcher, American League managers chose Rosar to be a reserve player in the 1942 All-Star Game over all other starting catchers in the league, with the exception of Birdie Tebbetts of the Detroit Tigers, who was selected to start the game.