Winds gusting up to 35mph challenged the world's finest players, as world No 1 Dustin Johnson was forced out by a back injury just moments before he was due to tee off
The narratives to follow, including Rory McIlroy gunning for a Grand Slam and Jordan Spieth's redemption hopes
The Masters is the only major that McIlroy is yet to win
McIlroy's opponent Gary Woodland withdrew due to a 'personal family matter'
McIlroy holds a two-shot lead over Phil Mickelson, Justin Thomas and Ross Fisher
World number three returned from a rib injury to shoot a three-under-par 68 and sit one shot off the lead
President frequently criticised Barack Obama for playing golf
Four-time major winner the latest professional to tee off with the Commander-in-Chief, who used to castigate Barack Obama for spending too much time on the course before taking the job himself
"It's still game on," said Clarke, who was a vice-captain to Jose Maria Olazabal four years ago. "There's 12 points to play for"
Matters appeared to reach breaking point as the golfer made his way between the seventh and eighth holes when a fan yelled at him to “suck a d***”
USA take a 9.5-6.5 lead into Sunday's singles, but the memories of the Miracle at Medinah continues to loom
The incident occured as the Europeans were tackling a putt on the eighth
McIlroy failed to reach the weekend for the second major this year after finishing on three over par and twelve shots behind co-leaders Jimmy Walker and Robert Streb
McIlroy missed the cut by just one shot while Jimmy Walker retained his first round lead to head into the weekend out in front alongside compatriot Robert Streb
Latest PGA Championship leaderboard on day one
Everything you need to know about the 2016 PGA Championship