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UNIVERSITY PLACE, WA - JUNE 21: Dustin Johnson of the United States lines up a putt on the 18th hole during the final round of the 115th U.S. Open Championship at Chambers Bay on June 21, 2015 in University Place, Washington. (Photo by Mike Ehrmann/Getty Images)

UNIVERSITY PLACE, WA - JUNE 21:  Dustin Johnson of the United States lines up a putt on the 18th hole during the final round of the 115th U.S. Open Championship at Chambers Bay on June 21, 2015 in University Place, Washington.  (Photo by Mike Ehrmann/Getty Images)