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TROON, SCOTLAND - JULY 15: Phil Mickelson of the United States lines up a putt on the 14th green with caddie Jim McLean during the second round on day two of the 145th Open Championship at Royal Troon on July 15, 2016 in Troon, Scotland. (Photo by David Cannon/R&A/R&A via Getty Images)

TROON, SCOTLAND - JULY 15: Phil Mickelson of the United States lines up a putt on the 14th green with caddie Jim McLean during the second round on day two of the 145th Open Championship at Royal Troon on July 15, 2016 in Troon, Scotland. (Photo by David Cannon/R&A/R&A via Getty Images)
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R & A David Cannon/R&A