Iain Carter
BBC golf correspondent at Valhalla

"Rory's driving statistics will be immaculate today. I'm struggling to think of a fairway he's missed."

Rory ripsnorts his drive down the middle of the 15th as Fowler knocks in a straight-forward par up ahead to stay -14. Mickelson from about 20 feet... broke too much from left to right, he stays joint leader with McIlroy - but Rory is wedging in behind them...

Nine-time major winner Gary Player tweets:, external Phil, Rory, Rickie, Henrik at the PGA Championship. I can't keep up and definitely cannot go to bed now...

A 68 for Kenny Perry on his 54th birthday, he finished on six under. World number two Adam Scott carded a 69 for nine under. Mickelson and Fowler into the guts of the green at 15, Stenson comes up short with his long-range birdie putt at 16.

Andy in Armagh: I was just writing this text to say that Rory McIlroy was out of this and it looks like the tournament belongs to one of Rickie Fowler, Phil Mickelson or Henrik Stenson. Then Rory went and nailed THAT 281-yard 3 wood, and then nervelessly rolled in the eagle putt. Buckle up folks!

Stenson finds the 16th green in regulation, Mickelson and Fowler clunk drives down the 15th. Westwood in with a 69 for nine under overall, which leaves him tied for 17th. Just never happened for Jason Day of Australia today, six straight pars between nine and 14 when too many around him were making hay.

Former Masters champion Zach Johnson tweets:, external What I played today would be classified as "really bad golf". What I'm watching now, would be classified as "UNREAL golf"!

Johnson shot six over in his final round and finished five over for the tournament.

Fowler for par - if he misses, it's Rory and Lefty at the top - and he does just that, dropping back to -14. Rory, now, taking aim at the par-three 14th. Five iron from 215 yards, can't quite cling onto the top level, but that's a very makeable birdie putt...

Mickelson looking for his third birdie in a row at 14... tugs it left, should make par...

Image source, Getty Images

With light fading, co-leader Rory McIlroy is in no hurry to get his round done.

"I will hang around until next week to try to win this thing. It doesn't bother me in the slightest," the world number one said pre-round.

Stenson pars the 15th, the Swede still steaming at one off the lead. Fowler gets a free drop out of that festival-like nonsense, but he's still got a tricky chip on. Good enough, but he'll do well to make par coming back... Stenson rips his drive down the 16th, straight down the middle...

McIlroy has got a seven or eight-footer for birdie at 13... nails it, we have a three-way lead...

Belgian pro Nicolas Colsaerts tweets:, external Easy to say rain has made golf course easier at PGA, leaders display today is still exceptional.

Furyk is in with a 66 for the clubhouse lead on -12. Mickelson on tee at the short 14th... right at the flag, stays at the top, birdie chance. Fowler has sprayed his tee shot miles right, he's got a rotter of a lie in some trodden down grass. Stenson with a treacle of a bunker escape at 15, should save par.

Image source, Getty Images

Ernie Els, who rocketed up the leaderboard with a final day 65 for -11 overall, said conditions were perfect for low scoring.

"On nine I said to my caddie let's get to 14 under. I felt my game was in such good shape," said the four-time major winner.

"The course was as gettable as you're ever going to get, as gettable as a major course will ever be."

Two pretty ordinary pars from Mickelson and Fowler at 13, they remain -15. More news from Ian Poulter's Twitter feed: "Time to collect the sushi and watch the last 7 holes. Interesting finish. Orlando just as warm as when we left in the summer." Just in case anyone was worried Ian wasn't eating properly and lived somewhere cold.

John McEnerney:, external Stenson ruling Valhalla with his putter(Odin) & Phil putting out of his skin! Men in Black!

Moon:, external Sporting drama doesn't get any better than the Sunday night of a major. Awesome stuff.

Lloyd Evans:, external Want McIlroy and Stenson to drop three shots, and Mickelson and Fowler to drop four. 10-man play-off for the US PGA. Imagine that!

Fowler safely on at 13, Mickelson gets inside him. Stenson's birdie putt just missed at 14... and his par putt horseshoed out. Fowler and Mickelson lead...

Victor Dubuisson is garnering a reputation for himself as a big-time contender, the Frenchman finished with a 66 for 11 under and a share of the clubhouse lead. McIlroy leaves his birdie putt a couple of inches right at 12, stays one off the leaders.