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Washington Nationals outfielder Bryce Harper is hitting the ball so well that sometimes even his pop-ups are home runs. But that doesn't mean he plans on displaying that power at the Midsummer Classic.

Harper said he's unsure whether he'll participate in the Home Run Derby this year because of his father's recent rotator cuff surgery.

"I probably won't be able to do it this year, because he's my guy," Harper said, per C. Trent Rosecrans of the Cincinnati Enquirer.

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Harper's father, Ron, pitched to him during his 2013 Home Run Derby debut, where he finished second. At that time, Harper's participation was based largely on his batting-practice spectacles and the notoriety he'd bring to the event.

This year, Harper has emerged as possibly the best player in baseball. He's currently tied with the Seattle Mariners' Nelson Cruz for the MLB lead with 18 home runs. Harper's 43 runs batted in also trail only Giancarlo Stanton of the Miami Marlins, who has 44.

Having one of the game's brightest stars participating would undoubtedly be a boon to the Derby, which is often the highlight of the All-Star Game festivities. Harper did not rule out the possibility of using a pitcher other than his father but seemed hesitant.

"We'll see if I end up doing it or not," Harper said. "As of right now, I don't know if I'll end up doing it."

Of course, none of this will matter if Harper winds up being left out of the selection process. MLB appoints captains each year from the American and National Leagues who then handpick other players to fill the remaining spots. Since he hasn't shown much enthusiasm so far, maybe Harper won't have to worry about turning down a Derby opportunity come July.

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