Jason Day hits his tee shot on the 18th hole during the final round of the PGA Championship at Whistling Straits in Wisconsin. (Brian Spurlock/USA Today)

Aug 16, 2015; Sheboygan, WI, USA; Jason Day hits his tee shot on the 18th hole during the final round of the 2015 PGA Championship golf tournament at Whistling Straits. Mandatory Credit: Brian Spurlock-USA TODAY Sports