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HUMBLE, TX - APRIL 01: Charley Hoffman of the United States waits on the ninth tee with his caddie Brett Waldman during the second round of the Shell Houston Open at the Golf Club of Houston on April 1, 2016 in Humble, Texas. (Photo by Stacy Revere/Getty Images)

HUMBLE, TX - APRIL 01:   Charley Hoffman of the United States waits on the ninth tee with his caddie Brett Waldman during the second round of the Shell Houston Open at the Golf Club of Houston on April 1, 2016 in Humble, Texas.  (Photo by Stacy Revere/Getty Images)