HUMBLE, TX - APRIL 03: Phil Mickelson hits his tee shot on the seventh hole during the second round of the Shell Houston Open at the Golf Club of Houston on April 3, 2015 in Humble, Texas. (Photo by Scott Halleran/Getty Images)
HUMBLE, TX - APRIL 03: Phil Mickelson hits his tee shot on the seventh hole during the second round of the Shell Houston Open at the Golf Club of Houston on April 3, 2015 in Humble, Texas. (Photo by Scott Halleran/Getty Images)