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OAKMONT, PA - JUNE 14: Louis Oosthuizen of South Africa plays his shot out of the bunker on the seventh hole during a practice round prior to the U.S. Open at Oakmont Country Club on June 14, 2016 in Oakmont, Pennsylvania. (Photo by Rob Carr/Getty Images)

OAKMONT, PA - JUNE 14: Louis Oosthuizen of South Africa plays his shot out of the bunker on the seventh hole during a practice round prior to the U.S. Open at Oakmont Country Club on June 14, 2016 in Oakmont, Pennsylvania.  (Photo by Rob Carr/Getty Images)