(CHICAGO, IL) - Carlos Pena's three-run home run in the top of the sixth inning gave the Chicago Cubs a 6-3 victory over the Chicago White Sox.
The Sox got on the scoreboard first with Carlos Quentin hitting an RBI single in the first inning and coming home on Paul Konerko's 20th home run of the season.
The Cubs cut it to 3-2 when Starlin Castro hit a two-run single in the third.
Castro tied the game with a solo shot off White Sox starter Gavin Floyd in the sixth.
Pena followed three batters later with what proved to be the game-winner off Floyd.
Carlos Zambrano lasted eight innings, allowing three runs on seven hits to improve to 6-4.
Floyd took the loss to drop to 6-7.
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