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HUMBLE, TX - APRIL 04: Jordan Spieth lines up a putt on the twelfth green during the third round of the Shell Houston Open at the Golf Club of Houston on April 4, 2015 in Humble, Texas. (Photo by Scott Halleran/Getty Images)

HUMBLE, TX - APRIL 04:  Jordan Spieth lines up a putt on the twelfth green during the third round of the Shell Houston Open at the Golf Club of Houston on April 4, 2015 in Humble, Texas.  (Photo by Scott Halleran/Getty Images)