SOUTHPORT, ENGLAND - JULY 18: Phil Mickelson of the United States tees off during a practice round prior to the 146th Open Championship at Royal Birkdale on July 18, 2017 in Southport, England. (Photo by Richard Heathcote/R&A/R&A via Getty Images)
SOUTHPORT, ENGLAND - JULY 18: Phil Mickelson of the United States tees off during a practice round prior to the 146th Open Championship at Royal Birkdale on July 18, 2017 in Southport, England. (Photo by Richard Heathcote/R&A/R&A via Getty Images)