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WHITE SULPHUR SPRINGS, WV - JULY 6: Phil Mickelson and his caddie Jim Mackay stand on the tee on the third hole during the second round of the Greenbrier Classic at the Old White TPC on July 6, 2012 in White Sulphur Springs, West Virginia. (Photo by Hunter Martin/Getty Images)

WHITE SULPHUR SPRINGS, WV - JULY 6: Phil Mickelson and his caddie Jim Mackay stand on the tee on the third hole during the second round of the Greenbrier Classic at the Old White TPC on July 6, 2012 in White Sulphur Springs, West Virginia. (Photo by Hunter Martin/Getty Images)