Josh Donaldson

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Oakland Athletics' Josh Donaldson (20) is congratulated after hitting a home run off Chicago White Sox pitcher Andre Rienzo in the fourth inning of a baseball game Wednesday, May 14, 2014, in Oakland, Calif. (AP Photo)

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Oakland Athletics' Josh Donaldson, right, and Josh Reddick celebrate after Donaldson hit a two-run home run off Chicago White Sox pitcher John Danks in the fifth inning of a baseball game Monday, May 12, 2014, in Oakland, Calif. (AP Photo/Ben Margot)

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Oakland Athletics' Derek Norris, right, celebrates his three-run home run with teammate Josh Donaldson (20) during the first inning of a baseball game against the Washington Nationals, Sunday, May 11, 2014, in Oakland, Calif. (AP Photo/Marcio Jose Sanchez)

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Oakland Athletics' Josh Donaldson swings for an RBI single off Washington Nationals' Rafael Soriano in the ninth inning of a baseball game Saturday, May 10, 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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Seattle Mariners left fielder James Jones hits the wall after making the catch on a ball hit by Oakland Athletics' Josh Donaldson in the first inning of a baseball game Wednesday, May 7, 2014, in Oakland, Calif. (AP Photo/Ben Margot)

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Oakland Athletics' Josh Donaldson, bottom, slides home to score on a hit by Yoenis Cespedes as Boston Red Sox catcher A.J. Pierzynski, top, waits for the ball in the sixth inning of a baseball game, Sunday, May 4, 2014, in Boston. (AP Photo/Steven Senne)