MLB: Houston 5, Pittsburgh 1

Sept. 3, 2012 at 5:50 PM

PITTSBURGH, Sept. 3 (UPI) -- Brett Wallace went 3-for-4 with a three-run homer Monday, powering the Houston Astros to a 5-1 victory over Pittsburgh.

With the Astros clinging to a 2-0 lead with one out in the fifth inning, Jose Altuve and Tyler Greene singled and Wallace followed by blasting a pitch into the right-center field bleachers.

Houston starter Edgar Gonzalez (1-0) allowed one run over 5 1/3 innings in only his second appearance since 2009. The right-hander surrendered five hits, issued one walk and struck out five.

Jeff Locke (0-1) started for the Pirates and was roughed up for five runs on seven hits over five full frames as Pittsburgh dropped a fourth straight.

Clint Barmes drove in the only run for the Bucs, who fell 2 1/2 games behind St. Louis for a National League wild card spot.

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