Joe Cronin, player-manager for the Boston Red Sox, slugged pinch-hit homers in both games of a June 17, 1943, doubleheader against the Philadelphia Athletics at Fenway Park.

Cronin's accomplishment has been equaled only once - by Hal Breeden of the Montreal Expos, on July 13, 1973, at Atlanta. Don Black. A's pitcher off whom Cronin hit athree-run pinch homer in the eighth inning of the nightcap. Philadelphia won, 8-7. Russ Christopher. A's pitcher off whom Cronin hit athree-run pinch homer in the seventh inning of the opener.

Boston won the first game, 5-4. Lou Lucier. Boston pitcher for whom Cronin batted in the opener. Mike Ryba. Boston pitcher for whom Cronin batted in the nightcap.