21. Mel Parnell, LHP
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In his 10-year career with the Sox from 1947-56, Parnell had a 123-75 record with a 3.50 ERA and 732 strikeouts. The two-time All-Star is Boston's all-time leader among lefty pitchers with 1,752.2 innings pitched, 232 games started and 123 wins.