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Even the great Scottie Scheffler just lost his cool on the 14th as he hammered his birdie putt at the hole - he's had his chance but could that be the end of his challenge?

Wyndham Clark hasn't exactly looked that solid at times and there's still some tricky holes to go - plus Scheffler birdied 15 and 16 yesterday.

Tom Kim keeps himself in the conversation by holing a nerve-jangling four-footer for par at the 15th.

Par-five coming up.

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Disappointment as Collin Morikawa and Matt Fitzpatrick finish up at the 18th green.

Both were within a sniff as they teed off, especially given how Wyndham Clark has come back to the field but they've not given themselves a chance.

A two-over 72 for Morikawa and a three-over 73 for Fitzpatrick leave them both out of the top 15.

Sam Burns hammers his drive at 18, but it bounds through the fairway and into the first cut.

Not the end of the world - it looks a half-decent lie - but a bit of a bad break at this late stage.

Iain Carter
BBC golf correspondent on BBC Radio 5 Live

Just no authority to that putt.

It was downhill and delicate but if you're going to win these things you have to seize the moment.

He was brave with the tee shot but if he has got a weakness, it's when he is putting under huge pressure.

What happened there gives a lot of evidence to support that argument.

Wyndham Clark's long range putt for birdie shaves the right edge of the hole, it doesn't catch the lip but it's so close to hitting the target.

Pars are good for the leader though.

And after leaving so many putts short this time Scottie Scheffler guns his birdie try and that does catch the lip, but at that speed it has no chance of dropping.

To make matters worse he then misses the three footer coming back! That bogey slips him back to level par and four behind Clark with four holes to play.

Here we go, then.

One of the biggest putts of Sam Burns' career. It's actually a little longer than I first thought (deceptive camera angle etc) at nine feet but still a wonderful opportunity.

He's missed! Ohhh, what a chance that was. That wasn't even close to be honest.

Andrew Murray
Former European Tour winner on 5 Live

There's no finer feeling than executing shots when required.

Down the stretch at a major championship is just about the ultimate examination.

Sam Burns will have got a lot of belief from the way he has played these past two holes.

He looks a terrific player.

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Jason's referring to the refusal of officials at the US Open at Oakmont last year to give him water relief in his final round.

Burns was in the final group remember and the weather was horrific.

Very different in the baking sunshine this year!

Can Sam Burns work the wind at 17?

What a shot! It lands in the heart of the green and scoots forward to around six feet for a birdie two.

Oh my.

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We've been asked for a bit of context on why the fans are treating Wyndham Clark differently.

Can't speak for them but his behaviour at Oakmont last year when he smashed up a locker did little for his reputation.

He's had a few notable incidents since breaking through a few years ago that have not endeared him to the golfing public but in fairness he has fronted up to all of it and sought redemption.

There's probably a bit of love and support for Scottie Scheffler linked in with it as well.

We've been saying it feels a bit like an away Ryder Cup for the leader, which cannot be easy.

It's hard to convey just how slopey some of these greens are at Shinnecock Hills - just take a look at the 11th below as Scottie Scheffler putts down that huge hill...

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Sam Burns holds a wedge up against the wind at 16. Good shot. He'd like it a little closer, but it's a 17-footer for birdie.

With only two holes to go after this - and given Wyndham Clark still has this hole to come - he has to give this a run, which I appreciate is easier said than done on these sun-baked greens.

Here he goes. It's in! A huge roar goes up as Burns reduces the arrears to just one. He's loving this challenge.

Ouch! Wyndham Clark is glad Scottie Scheffler's putt didn't land, as moments later his par save slides by the hole and that's a bogey for the leader - who now only leads by two shots.

Again that Clark miss is greeted by some cheers from the Shinnecock fans...

Scottie Scheffler's putt looks in for all the world, until it's not! It just runs out of steam and takes a late break away to the right and Scheffler just can't believe it - he really is running out of holes and running out of time to catch Wyndham Clark.

Iain Carter
BBC golf correspondent on BBC Radio 5 Live

The crowds aren't behind him by any stretch of the imagination. They weren't yesterday.

I think he's seen as a bit of a golf bad boy. They love a champion, they want a contest and they want Scottie Scheffler up there. He's getting all the support.

It's very muted for Wyndham Clark.

Right. Sam Burns has found the fairway at the beastly par-five 16th. Into the wind, this 604-yarder is well out of reach in two but he manufactures a solid second to leave himself in a position to attack.

Steady Eddie Keith Mitchell is also in good shape in two. A couple of birdies coming up?

Got a nice positive update for you on Tommy Fleetwood, who is up at 16 and has rolled in his first birdie since the third hole.

Back then, we all got a little excited about a Sunday charge from the Southport native. It hasn't happened unfortunately, but he is back into the top 10.