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