 Warren's 1944 season totals included a record of 1–4 with 18 strikeouts and an ERA of 4.98, ending ninth in the National League with 14 games finished.A pretty good switch hitting pitcher, he batted .256 (11-for-43) with one run scored and two RBI in 41 games, 19 of them in pinch hitting duties.In between, Warren spent 14 seasons in the Minor Leagues and played winter ball with the Sabios de Vargas of the Venezuelan Professional Baseball League in 1949.