Leicester look a tad rattled.

Now, N'Golo Kante stops Mesut Ozil in his tracks as they look to calm the storm.

The Frenchman is booked for his efforts.

Matt Elliott
Former Leicester City captain on BBC Radio Leicester

Image source, Reuters

"He has a little hold of his arm and Giroud has folded himself over. Simpson shouldn't be in that position but in a game of this magnitude, in a title decider, it needs to be something more than something soft like that."

Image source, Reuters

Danny Simpson has his head in hands.

The defender tugs back Olivier Giroud and is shown a second yellow card.

Simpson got his first booking five minutes ago for pulling down Alexis Sanchez.

A test for the Foxes now.

Christian Fuchs is shown yellow for going through the back of Olivier Giroud.

Nice stuff from Arsenal, which ends in Nacho Monreal crossing from the left and Giroud heading over the bar.

Phil McNulty
BBC Sport chief football writer

"Going to be huge pressure on referee Martin Atkinson here - Arsenal fans already roaring for every decision and cheering sarcastically when they get one because of that perceived injustice over the penalty.

"Arsenal need to press for an equaliser now and Leicester City might just fancy their chances on the counter-attack."

Matt Elliott
Former Leicester City captain on BBC Radio Leicester

"I would say to a penalty on that. It was a great piece of skill but if anything he has tripped himself over. It was almost a Cruyff turn on the run - a really difficult bit of skill. My initial reaction was that he had been clipped, but he didn't need to go down."

Alistair Bruce-Ball
BBC Radio 5 live commentator at the Emirates Stadium

"Very little contact there, Mahrez exaggerated it."

Arsenal fans hold their breath.

Riyad Mahrez twists and turns inside the area. He turns Nacho Monreal before going down and claiming contact.

If there was, it was very slight.

Referee Martin Atkinson is having none of it.

Alexis Sanchez runs at Danny Simpson and the Leicester man pulls him down.

Snachez waves an imaginary card and Martin Atkinson obliges.

How big could this second half be?

Stay as it is and Leicester will be eight points clear at the top of the Premier League.

Laurent Koscielny went off with a dead leg by the way.

James Diamond: 2nd half starting. Huge effort needed from Arsenal here or I can see this ending 3-0 Leicester

Jesse Aarnikko: Mertesacker-Chambers vs Vardy-Mahrez. This might turn nasty... 

David Pleat
Former Tottenham boss on BBC Radio 5 live

"The whole idea of a forward going into box is, if he attacks the defender, then the defender might make a mistimed challenge, and that’s what happened, that’s what a forward tries to do."

So how good are Arsenal at fighting back? Not great it would seem.

The Gunners haven't won a Premier League game they've been losing at half-time since October 2011 (5-3 vs Chelsea).

They go close early on though as Aaron Ramsey drags a shot from 20 yards wide of the post.

We are back under way.

A substitution for the Gunners.

Defender Calum Chambers replaces Laurent Koscielny. Must be an injury

Here come the teams...

If the stat below is anything to go by, Arsenal have a mountain to climb.

Leicester have won eight and drawn one of the nine games they've been leading at half-time this season. Arsenal have drawn one and lost four when they've been trailing at the interval.

There you go Arsenal fans...

Sharkastic: Atkinson has had two penalty decisions to make, and he's got them both wrong.

Howard Horner: Anyone saying it isn't a penalty is deluded. 100% penalty. Now whether Morgan fouled Ozil in the build up is another matter...

James Stevenson: Some may call what Vardy did conning the ref. But the defender sticks his foot out and he uses that to his advantage. Clever.