Bryce Harper

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Washington Nationals' Bryce Harper tosses his bat after striking out against the Milwaukee Brewers during the eighth inning of a baseball game, Friday, July 27, 2012, in Milwaukee. (AP Photo/Jeffrey Phelps)

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Nationals' Ryan Zimmerman (right) is greeted by Michael Morse (center) and Bryce Harper (left) after his two-run home run in the bottom of the second inning. (Rod Lamkey Jr./The Washington Times)

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Nationals' Ryan Zimmerman (right) is greeted by Michael Morse (center) and Bryce Harper (left) after his two-run home run in the bottom of the second inning. (Rod Lamkey Jr./The Washington Times)

Bryce Harper fouls ball off foot

Screenshot of Bryce Harper fouling a ball off his left ankle/foot on Saturday. Image courtesy of @recordsANDradio, screenshot via MASN.

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Bryce Harper slides in to third base tripping up Mets' third baseman David Wright in the bottom of the tenth inning during the Washington Nationals game against the New York Mets at Nationals Park, Washington D.C.,Tuesday, July 17, 2012. Harper's triple allowed Jhonatan Solano to score tying the game at 4-4. (Ryan M.L. Young/The Washington Times)

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Bryce Harper slides in to third base in the bottom of the tenth inning during the Washington Nationals game against the New York Mets at Nationals Park, Washington D.C.,Tuesday, July 17, 2012. Harper's triple allowed Jhonatan Solano to score tying the game at 4-4. (Ryan M.L. Young/The Washington Times)

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Nationals right fielder Bryce Harper (right) and second baseman Stephen Lombardozzi collide as Harper makes the catch for the final out in Washington’s 4-0 win at Miami. Stephen Strasburg earned his 10th victory of the season. (Associated Press)

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Second base umpire Marty Foster watches as Miami Marlins second baseman Omar Infante (12) tries to tag Washington Nationals' Bryce Harper (34) during the first inning of a baseball game in Miami, Friday, July 13, 2012, on a late throw from center field. Harper singled, and advance to second on an error by Logan Morrison. (AP Photo/J Pat Carter)

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Generations crossed when Bryce Harper and Chipper Jones shared a light moment before the All-Star Game. (Associated Press)

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National League's Bryce Harper, of the Washington Nationals, warms up during MLB All-Star baseball batting practice, Monday, July 9, 2012, in Kansas City, Mo. (AP Photo/Charlie Riedel)

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Nationals Bryce Harper flies out in the bottom of the fifth inning. (Rod Lamkey Jr./The Washington Times)

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Bryce Harper hits the ball during the Nationals' game against the Colorado Rockie. (Ryan M.L. Young/The Washington Times)

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Bryce Harper runs onto the field from the dugout. (Ryan M.L. Young/The Washington Times)

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Nationals General Manager Executive Vice President of Baseball Operations Mike Rizzo gives a hug to Bryce Harper (34) prior to the game as the Washington Nationals host the Colorado Rockies. (Rod Lamkey Jr./The Washington Times)