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OAKMONT, PA - JUNE 17: Rory McIlroy of Northern Ireland hits his tee shot on the 14th hole during the continuation of the weather delayed first round of the U.S. Open at Oakmont Country Club on June 17, 2016 in Oakmont, Pennsylvania. (Photo by Sam Greenwood/Getty Images)

OAKMONT, PA - JUNE 17:  Rory McIlroy of Northern Ireland hits his tee shot on the 14th hole during the continuation of the weather delayed first round of the U.S. Open at Oakmont Country Club on June 17, 2016 in Oakmont, Pennsylvania.  (Photo by Sam Greenwood/Getty Images)