U.S. Open 2011

2013 U.S. Open Champion and PGA Tour golfer Justin Rose during TaylorMade's 15-inch-cup event at the Oconee Golf Club at Reynolds Plantation on Monday, April 14, 2014 in Greensboro, Georgia. The event was the first experiment to take place for the HACK Golf initiative. (Paul Abell/AP Images for HACK Golf)

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The U.S. Open is underway in Flushing Meadows, New York.

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