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WASHINGTON (AP) - Adam LaRoche hit a game-winning solo home run with two outs in the 11th inning to help the Washington Nationals beat the Arizona Diamondbacks 5-4 Monday night for their seventh straight win.

It was the third walk-off win in as many days for NL-East leading Washington.

LaRoche sent a 3-1 pitch from Will Harris (0-3) off the wall in the back of the Nationals bullpen and was mobbed by his teammates at home plate.

Winning pitcher Craig Stammen (3-4) pitched out of a bases-loaded, no outs jam in the top of the inning.

Arizona tied it 4-4 when David Peralta led off the ninth with a solo homer off Tyler Clippard.

Washington trailed 3-2 when Denard Span doubled with one-out in the eighth against Brad Ziegler and Anthony Rendon followed with a triple to tie it.

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