Second Round of the 97th PGA Championship at Whistling Straits in Kohler, Wisconsin

Rory McIlroy, right and Jordan Spieth, the number one and two ranked players in the world, walk down the 16th fairway during the first second round of the 97th PGA Championship at Whistling Straits on August 13, 2015 in Kohler, Wisconsin. Photo by Frank Polich/UPI