Phoenix

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Arizona Diamondbacks' Gerardo Parra (8) is forced out at second base by Washington Nationals' Ian Desmond, left, on a fielder's choice as Nationals pitcher Doug Fister (58) looks on during the first inning of a baseball game on Wednesday, May 14, 2014, in Phoenix. (AP Photo)

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Washington Nationals' Doug Fister throws a pitch against the Arizona Diamondbacks during the first inning of a baseball game on Wednesday, May 14, 2014, in Phoenix. (AP Photo)

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Arizona Diamondbacks' Brandon McCarthy throws a pitch to a Washington Nationals batter during the first inning of a baseball game Wednesday, May 14, 2014, in Phoenix. (AP Photo)

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Arizona Diamondbacks' Aaron Hill connects for a home run off Washington Nationals' Doug Fister during the fourth inning of a baseball game Wednesday, May 14, 2014, in Phoenix. (AP Photo)

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** FILE ** The Phoenix VA Health Care Center in Phoenix, is seen in this Monday, April 28, 2014, file photo. A team of federal investigators swept into the city last month amid allegations of a disturbing cover-up at the veterans hospital, and began interviewing staff at the facility and poring over records, emails and electronic databases. (AP Photo/Ross D. Franklin)