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NAPA, CA - OCTOBER 13: Paul Casey of England waits to putt on the 13th hole during round one of the Safeway Open at the North Course of the Silverado Resort and Spa on October 13, 2016 in Napa, California. (Photo by Ezra Shaw/Getty Images)

NAPA, CA - OCTOBER 13:  Paul Casey of England waits to putt on the 13th hole during round one of the Safeway Open at the North Course of the Silverado Resort and Spa on October 13, 2016 in Napa, California.  (Photo by Ezra Shaw/Getty Images)