MLB: Philadelphia 4, Washington 2

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PHILADELPHIA, Aug. 25 (UPI) -- John Mayberry drove in three runs, including a go-ahead homer in the sixth inning, boosting the Philadelphia Phillies to a 4-2 win over Washington Saturday.

With the score tied 2-2 in the sixth, Mayberry led off by belting a pitch from Nationals starter Gio Gonzalez (16-7) into the first row of the left field bleachers, putting the Phillies ahead to stay.

Philadelphia added an insurance run in the eighth when Chase Utley was hit by a pitch, stole second and third base, and scored on Mayberry's sacrifice fly.

Roy Halladay (8-7) earned the victory, holding the Nationals to two runs on seven hits through seven frames. The right-hander walked one and struck out six.

Jonathan Papelbon tossed a 1-2-3 ninth to rack up his 29th save as Philadelphia clinched its three-game set.

Gonzalez ended up allowing three runs on five hits through six innings.

Steve Lombardozzi supplied a two-run single for National League East-leading Washington.