Sergio Garcia is out in 38. That's a second six in three holes. It's only a par five so the damage is not as bad, but the Spaniard is down in a tie for 33rd, 12 shots off the pace.

Webb Simpson tugged his tee shot left. He's somehow drifted further left with his approach and is playing this fifth hole like a crazy golf course at the minute.

Charl Schwartzel looked worse off after his wayward drive, but finds the fairway.

Patrick Reed rediscovering a touch of that Masters-winning form with an eagle at the 16th.

He's 11 off the lead, mind.

Jason Day is back in red numbers for the day after taking the scenic route down the fifth. Well played Sir.

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Webb Simpson's tee shot at five gets a couple of spectators scrambling to their feet, but stops short of the rough.

Charl Schwartzel screams "fore" as he fires into a crowd of onlookers who skip around the bouncing ball like Eurovision backing dancers.

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Simpson taps in for birdie. That takes him to a staggering 17 under and a whopping seven-shot lead.

It lasts a matter of seconds... Schwartzel neatly rolls his birdie putt in to move to 11 under.

This is Ian Poulter earlier in his third round.

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A couple of cracking approaches to the fourth green from the final pair.

Charl Schwartzel using the bank to bring his into play. Webb Simpson firing right at the pin.

Tom Scott: Can't see Poulter playing it safe this year if he has a chance down the stretch. Go hard or go home.

The unmistakable locks of Tommy Fleetwood on the 17th tee.

The Southport golfer, sporting his usual Everton-blue jersey, watches his effort into the 17th green spin deliciously back towards the pin.

A tap in for birdie?

He's at six under.

Ian Poulter makes his par three at the 13th but only after having words (let's leave it at that) with the gallery on the tee box.

He only took his shot at the third attempt having backed away on two occasions.

Webb Simpson successfully navigates the third in par, as does Charl Schwartzel.

Meanwhile, there's a new rider in the race for second - Charles Howell III makes it a four-way tie with a birdie at the fourth.

The Spaniard pays the price for a poor tee shot at the par four seventh.

-16 W Simpson (2)

-10 C Howell III (4), P Cantlay (3), D Lee (3), C Schwartzel (2)

-9 J Dufner (F), I Poulter (12), J Walker (6), X Schauffele (5), A Noren (4)

-8 J Spieth (F), T Woods (F), S Garcia (6), S Stricker (5), J Day (4)

Good job, Webb Simpson. A long-range putt from the outer reaches of the green trickles narrowly past the pin and he taps it in for par.

Charl Schwartzel's birdie attempt runs left of its intended target. A little shake of the head from the South African. He's also down for par.

That's now a six shot lead for Webb Simpson as Patrick Cantlay hands his gain on the second hole straight back at the third with a three-putt.

Right then, Mr Top of the Leaderboard, what can you do from here?

All sorts of obstacles confronting Webb Simpson as he looks to go from pine to green. The American can't see the flag, and just overcooks it a touch as his approach runs on to the fringes.

Does Charl Schwartzel sense an opportunity? He's got a bunker in his way, but lofts a deft third shot to around 12 feet from the pin.

The lead is back to just the five shots.

Patrick Cantlay responds to Webb Simpson with a first gain of the day at the par five second playing in the group in front.

That's the American into sole possession of second place, but there is still a lot of golf to play.

Whip. But a little too much for Webb Simpson as he opts for a driver off the deck, nestling in the pine needles that sit to the right of the second green.