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ST ANDREWS, SCOTLAND - JULY 17: Greenstaff squeegee the grounds during the second round of the 144th Open Championship at The Old Course on July 17, 2015 in St Andrews, Scotland. (Photo by Warren Little/R&A/R&A via Getty Images)

ST ANDREWS, SCOTLAND - JULY 17:  Greenstaff squeegee the grounds during the second round of the 144th Open Championship at The Old Course on July 17, 2015 in St Andrews, Scotland.  (Photo by Warren Little/R&A/R&A via Getty Images)