The theme of the week at Whistling Straits was the relentless march of golf's young guns as they continue to sweep away the old guard and sure enough 25-year-old Martin Kaymer became the latest major winner.
But it was a massive controversy centered on another rising young star, American Dustin Johnson, that will be the abiding memory of this year's PGA Championship.
Leading Kaymer and Bubba Watson by a stroke playing the 18th, his tee shot found one of over 1,000 sandy hollows which pit the links-style course in Wisconsin.
Surrounded by a mob of fans and marshals, Johnson had little other thought than locating his ball and then finding the green with his second shot because a par-four would be enough to secure his first major title.