Oakland

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Washington Nationals' Doug Fister, left, walks back to the mound after giving up a home run to Oakland Athletics' John Jaso, right, in the third inning of a baseball game on Friday, May 9, 2014, in Oakland, Calif. (AP Photo/Ben Margot)

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Washington Nationals' Doug Fister (58) hands the ball to manager Matt Williams as Fister is removed from the baseball game against the Oakland Athletics in the fifth inning Friday, May 9, 2014, in Oakland, Calif. (AP Photo/Ben Margot)

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Oakland Athletics' Brandon Moss, front right, is congratulated by teammate Josh Donaldson (20) hitting a two-run home run off Washington Nationals' Doug Fister in the fifth inning of a baseball game on Friday, May 9, 2014, in Oakland, Calif. (AP Photo/Ben Margot)

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Washington Nationals' Doug Fister works against the Oakland Athletics in the first inning of a baseball game on Friday, May 9, 2014, in Oakland, Calif. (AP Photo/Ben Margot)

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Oakland Athletics' Tommy Milone works against the Washington Nationals in the first inning of a baseball game on Friday, May 9, 2014, in Oakland, Calif. (AP Photo/Ben Margot)

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Washington Nationals' Doug Fister works against the Oakland Athletics in the first inning of a baseball game on Friday, May 9, 2014, in Oakland, Calif. (AP Photo/Ben Margot)

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Washington Nationals' Doug Fister, left, walks back to the mound after giving up a home run to Oakland Athletics' John Jaso, right, in the third inning of a baseball game on Friday, May 9, 2014, in Oakland, Calif. (AP Photo/Ben Margot)

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Oakland Athletics' Yoenis Cespedes (52) is congratulated by Josh Reddick, right, after Cespedes hit a home run off Washington Nationals' Doug Fister in the fifth inning of a baseball game on Friday, May 9, 2014, in Oakland, Calif. (AP Photo/Ben Margot)

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Oakland Athletics' Tommy Milone works against the Washington Nationals in the first inning of a baseball game on Friday, May 9, 2014, in Oakland, Calif. (AP Photo/Ben Margot)