We asked you earlier whether you fancied Westy or JT to win this one - there were 1,209 thumbs up for Westwood, 600 for Justin Thomas. Could be some unhappy punters out there the way the American is going right now... here's his eagle from earlier.

Bit of a wind across the 13th tee and Lee Westwood has to back off and reconsider, hanging a piece of grass in the air like he's about to kick a penalty at Twickenham.

Doesn't quite have as much juice as he'd have liked, tidily on to the dance floor but leaving a mid-ranger for a much-needed birdie.

-14 J Thomas (13)

-12 L Westwood (12)

-11 T Gooch (17), B Harman (14)

-10 C Conners (F), P Casey (13), B DeChambeau (12)

Talor Gooch casts a nervous glance at his caddie as he watches his putt on the 17th green race past the hole.

Is this going off the green? The collar of rough comes to his rescue. Terrific par putt coming back.

One left. He's surely going to need a birdie.

Justin Thomas is human. A rare missed birdie putt on the 13th. Holds on to his two-shot lead though.

Lee Westwood takes a few air swings at his bunker shot before flopping it out on to the green, safely does it. The trouble is, he needs birdies if's he going to chase down JT...

Bryson DeChambeau dishes up a delightful chip that wriggles to within a couple of feet and he'll sink this for a birdie to move to 10 under.

Our leader Justin Thomas is following Paul Casey down the 13th. The pin is in a friendly position despite being tucked just beyond the water.

Aim a dozen feet right and let the slope do the work.

It's not quite the same as the traditional Sunday pin at Augusta National during the Masters, but it's got that kind of feel to it.

Thomas goes straight at the flag. Fifteen feet for another birdie...

Another birdie for Paul Casey. It's his fourth of the round. Sadly he's had three bogeys today too.

Still, he's back to 10 under par. Feels like holes running out though.

Not quite clicking for Lee Westwood today, he drags his tee shot on the drievable par-four 12th left and maybe gets a touch fortunate that it finds the sand, was on its way into the water otherwise...

Justin Thomas is on the par-four 12th. He got a little giddy with his drive, racing through the back of the green.

His playing partner Doug Ghim is in almost the exact same spot and plays a little checking chip down the green.

Thomas gets a great look at that and uses it wisely, setting his ball a yard further to the left and watching on as the ball curls stone dead.

Since dropping a shot on the eighth, Thomas has gone birdie, birdie, eagle, birdie and into a two-shot lead.

Oooh, Westy's birdie putt just comes up a few rotations short. How he would have loved that to drop. He's become the chaser after Justin Thomas' surge into the lead. One back, the 47-year-old Englishman.

Brian Harman is trying to muscle in on the party. The American has just popped in back-to-back birdies at 12 and 13 to move to 11 under.

And breathe. Who's your money on? Lee Westwood is clinging on a bit here, as is Bryson DeChambeau.

Justin Thomas is the man moving in the right direction and has plenty of holes left.

Thumbs up for a Westy win. Thumbs down for JT...

Talor Gooch is also not out of this. A dreamy second into the par-five 16th and he's got a 12-footer for eagle. Tentative putt.

It's a birdie though and he's just two off the lead.

Matt Fitzpatrick is also battling hard. Another birdie look on the 14th but again he can't hole it.

Lee Westwood slings a wedge to the green and it fizzes back a foot or so to settle on the fringe. He could really do with a birdie here, made more difficult by that foray into the trees off the tee...

Jon Rahm has huge sweat patches under his arms as he toils in the Florida sunshine. To be fair, he had those marks when he walked on to the first tee.

He found the front edge of the green on the 12th but he mis-reads his eagle putt and it wanders five feet right. Birdie time.

Paul Casey drops, chips on and nails a 10-footer for a gutsy par.

Such a rollercoaster of a day.

Lee Westwood is anchored down on the pines at 11, scattering spectators. He's got a view through the trees and makes a lovely connection to knock it back out on to the fairway.

Bryson DeChambeau drags his approach to the left of the green after missing the fairway with his tee shot.

Paul Casey is on the 12th tee. It's a 308-yard par four. Driveable.

The risk is the water all the way down the left.

The Englishman drops his club as he watches his ball plop straight into the lake. Was he disturbed mid-shot?

"You guys nice and quiet please, thank you," says an officious sounding voice as Casey glares into the middle distance.

Things could be unravelling for Lee Westwood here. He sprays a drive into the fans and lets go of his club in the process. He'll be praying for a favourable lie...