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UNIVERSITY PLACE, WA - JUNE 21: Louis Oosthuizen of South Africa waves on the 17th green during the final round of the 115th U.S. Open Championship at Chambers Bay on June 21, 2015 in University Place, Washington. (Photo by David Cannon/Getty Images)

UNIVERSITY PLACE, WA - JUNE 21:  Louis Oosthuizen of South Africa waves on the 17th green during the final round of the 115th U.S. Open Championship at Chambers Bay on June 21, 2015 in University Place, Washington.  (Photo by David Cannon/Getty Images)