Monte Irvin wasn't technically the first black player on the New York Giants. He made his first Major League appearance on July 8, 1949. The same day that Hank Thompson made his first appearance in a Giants uniform. (Thompson was also the first black ballplayer on the St. Louis Browns in 1947.) Thompson was the leadoff batter and Irvin came in to pinch hit in the top of the 8th. On that particular day the Giants were playing the Brooklyn Dodgers. The Dodgers by the, of course, had the great Jackie Robinson. In addition the Giants were facing a black battery of Don Newcombe and Roy Campanella. The Dodgers beat the Giants that afternoon in Ebbets Field 4-3.