Washington Nationals

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Washington Nationals' Ryan Zimmerman follows through on his grand slam against the San Diego Padres during the third inning of a baseball game on Sunday, July 7, 2013, in Washington. (AP Photo/Nick Wass)

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Washington Nationals starting pitcher Jordan Zimmermann delivers against the San Diego Padres during the first inning of a baseball game on Saturday, July 6, 2013, in Washington. (AP Photo/Nick Wass)

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Washington Nationals starting pitcher Gio Gonzalez (47) throws during a baseball game against the San Diego Padres at Nationals Park Friday, July 5, 2013, in Washington. (AP Photo/Alex Brandon)

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Washington Nationals manager Davey Johnson is seen in the dugout before the start of the fourth inning in a baseball game against the Arizona Diamondbacks at Nationals Park, Wednesday, June 26, 2013, in Washington. (AP Photo/Pablo Martinez Monsivais)

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Stephen Strasburg tossed seven scoreless innings over the Brewers on Tuesday night, but it was for naught as the Nationals lost 4-0. (Associated Press photo)

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Washington Nationals left fielder Bryce Harper, 20, acknowledges the hometown fans after hitting a home run Monday in his first at-bat following a 31-game stint on the disabled list. (Associated Press)