Willy Mo Pena, OF
Acquired in a trade that sent Bronson Arroyo to the Reds, Wily Mo Pena was a valuable asset to the Sox early in the season until a wrist injury sidelined him. He batted .321 with four home runs in 112 at bats. Surprisingly effective in center field (and surprisingly bad in right field), the hulking Pena will need to cut down on his strikeout totals to improve his game. He may see more time at first base in the second half.