ST ANDREWS, SCOTLAND - JULY 17: Phil Mickelson of the United States looks on from 17th green during the second round of the 144th Open Championship at The Old Course on July 17, 2015 in St Andrews, Scotland. (Photo by Matthew Lewis/Getty Images)
ST ANDREWS, SCOTLAND - JULY 17: Phil Mickelson of the United States looks on from 17th green during the second round of the 144th Open Championship at The Old Course on July 17, 2015 in St Andrews, Scotland. (Photo by Matthew Lewis/Getty Images)