These are seminal times in the United States. In the space of just a year, the landscape of professional sports here has been transformed with the emergence of three openly gay athletes.
Robbie Rogers, who now plays for the LA Galaxy in Major League Soccer, broke the mould, before Jason Collins became the first openly gay player in any of the four major U.S. sports.
The 35-year-old Collins was only signed on a 10 day contract by the Brooklyn Nets (subsequently signing for another 10 days) but the impact was huge.
So think what it will be like if Michael Sam joins the NFL. Sam is a defensive end and has just completed his education at the University of Missouri –if he’s drafted in May, he’d become the first active NFL player to have declared his homosexuality publicly.
In the macho world of testosterone-fuelled locker-rooms, homosexuality is seen as the last taboo.
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.