Someone is happy about that mistake though...

No way! How has Adam Scott missed this one? That tiddler - the type that even us club players would give our mates (albeit not on putting surfaces as treacherous as those at Augusta) - slides wide.

Uh oh. A horror show for Tiger Woods and Jon Rahm on the 14th tee.

Woods's right hand comes off his grip as the ball sails west, before Rahm sends his ball in pursuit.

Rahmbo's reaction is not as cool. A thump of the driver into the turf (we've all done that) is followed by booting his tee down the fairway (we've all done that) and rounds off his mini-strop with a flurry of swear words (we've all done that).

The holy trinity of golfing frustration.

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Now then, a par five for Rory and he's in the middle of the fairway. Starts right... stays right... isn't coming back... drink waiting... splash.

Major trouble in the evasive major.

Up ahead on 16 and it's our leader. "Go, go, go!" Adam Scott tells his ball. Like a stroppy teenager it doesn't listen.

That leaves him with a difficult birdie putt, which he can't convert but should safely knock in for a par.

Brollies are being popped up like Usher's collar. Tiger Woods is chuntering away as the slick surface whips his ball away from the target, exactly the same happening to Jon Rahm seconds later.

A pair of pars.

Louis Oosthuizen goes right up the middle of 15, a par five. He drained a 10ft putt for par on 14 very confidently.

The rain falls so Louis has put his sleeveless jacket on and looks the part.

Tommy Fleetwood is back on 14 and made a hash of the par-five 13th. He arrows into the green but again, there's not much happening for him and he will have two putts to save par.

And with Adam Scott leaping up to eight under, that also leaves former champions Sergio Garcia and Zach Johnson, plus England's debutant Eddie Pepperell - both on three under - also looking vulnerable.

As things stand Martin Kaymer, Devon Bling (A), Takumi Kanaya, Alex Noren, Billy Horschel and Emiliano Grillo are also in danger of missing the cut on three over par.

Both Pepperell and Garcia are still out there at the moment - how welcome would a birdie or eagle be right now?

Iain Carter
BBC Sport golf correspondent at Augusta National

It looks like four over par is not going to make the weekend which means Justin Rose would miss an Augusta cut for the first time.

The 1988 winner Sandy Lyle also looks like missing out despite a brave bid.

Tiger on the 13th... reaches the green in two but is on a downslope on the left-hand side. That's preferable to Rahm's position, however. He's in the sand at the back.

Nicely done, young man. Rahm splashes out nicely, weighted beautifully. On the fringe, Tiger gives his ball a shove but not quite enough. Thirteen feet short...

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Augusta National landed a punch on the chin of both Rory McIlroy and Rickie Fowler on 11, serving up dropped shots. They come back with guts, pin seeking on 12 - the par three. Both have putts of 12ft or so....both pull them.

Chances gone.

Gotcha! Adam Scott, who likes to keep the flagstick in following that recent rule change, sticks his ball down the drain for that eagle on the par-five 15th.

The galleries go wild, the 2013 Masters champion keeps his cool.

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Brooks Koepka finished the second round at one under par and in a pretty familiar position at the top of the leaderboard, with joint leaders Francesco Molinari and Jason Day, on seven under par.

"It was nice to see a putt go in on 18 and to get some momentum going into weekend. I didn’t strike it or putt it as well as yesterday but my game feels good.

"It helps having three majors under your belt, that adds some confidence and I wouldn’t say other tournaments don’t matter but I like turning up on the big stages, it helps me get really focused."

Another Masters another cut made by 24-year-old Englishman Matt Fitzpatrick.

He finished tied in seventh here in 2016.

Slurp, slurp.

Rickie Fowler comes up short of 11 and is in the drink. He will be giving a blow or two back to Augusta National here.

Louis Oosthuizen's South African accent cuts through the air. He's in a spot of bother on 14 behind a tree and he will have to play a hook shot. The ball bends out of there like Roberto Carlos has hit it. It's got some run and makes the dance floor to leave a very long birdie look.

Back to Fowler - he gives one away - getting up and down from his drop. Rory McIlroy alongside him goes from trees to sand and also loses one.

Talking of reaching the green in two on a par five.... Adam Scott has done exactly that a couple of holes ahead of Woods on the 15th. Almost running after the ball is a tell-tale sign that he knows it is dynamite.

After seeing it end up four feet away, that turns into a chest-puffing confident strut. Nail this and the Aussie will go into the outright lead...

Tiger with the big dog in his hand on the 13th tee.... and the grin tells you everything you need to know. He loves it. Ball bounds down the fairway and nestles on the first cut. Great line in...

Doesn't even touch the sides. Jon Rahm cans his short par putt to stay two shots off the leaders. Haotong Li's birdie putt didn't drop either by the way.

Turns out Haotong Li is actually inside Tiger Woods. Accept a written apology sir.

Tiger lines his birdie putt up on the left lip - and that's where it stays. Doesn't even flinch.

Good question Kevin. And we don't actually know the answer. Maybe there is a designated 'thunderstorm evacuation zone' with wardens and everything.

Doesn't look like all the spectators are back at their favoured vantage points as Woods, Rahm and Li kick off again on the 12th.

Rahm putts first from about 25 feet... nice weight, nice line... should be a three.