Arsenal flinging balls into the area - if only they had an 'Alan Smith'.

Seconds left.

Ashley Young is replaced by Marcus Rashford.

Another decent run-out for the rejuvenated England international.

Five of your stoppage minutes.

Arsenal boss Arsene Wenger is having a 'talking to' by the ref after he appears to have stepped out of the technical area presumably to protest about the penalty appeal.

Image source, Reuters

Lukaku tries to break but miscontrols the ball.

The home support cheer, but he gets a sincere round of applause from his manager Jose Mourinho.

Moments later, Mourinho is apoplectic as ref Andre Marriner shows a yellow - rather than red - as Laurent Koscielny pulls down Romelu Lukaku who was about 45 yards from goal.

Back in the United box, Matteo Darmian tackles Danny Welbeck, who falls down under the challenge. Should it have been a penalty?

Image source, Reuters

Louis Porter: Is nobody going to question why Bellerin just placed his leg on the ground rather than challenging for the ball? For a 50/50 ball you expect a challenge, not a leg on the ground infront of you

Jack Blackburn: Is this the moment when the title race ends? Pogba’s red means he misses the Manchester derby, and he would have been key to most hopes of winning that...

Danny Welbeck's shot is deflected and loops goalwards.

Unsurprisingly the perennially alert De Gea pushes the ball over the bar.

Nothing comes from the corner.

Six minutes plus stoppage remaining.

Mourinho is fully justified in parking the bus.

Arsenal continue to probe - will they find a route... er.. past the bus?

Less than 10 to go.

I don't think Paul Pogba will make Garth Crooks' team of the week.

Image source, Getty Images

David Robinson: Pogba didn't once look at the ball. Eyes on Bellerin. Completely intentional. Disgusting play. Well done ref to see that.

Alan Ferguson: Been such a good game then Pogba does that. That’s just an awful challenge

Nasty.

United will have to play the last 15 minutes with 10 men - just in case you thought we lacked a twist in this match.

Paul Pogba went in studs first which were planted in the back of Hector Bellerin's leg.

Ref Andre Marriner paused for a little while before displaying a straight red.

Pogba will miss the Manchester derby.

Oh, Giroud is on.

Image source, Getty Images

An Arsenal corner is cleared by United's defence.

As the visitors break Hector Bellerin floors Ashely Young with - what they call in the business - a mistimed tackle.

Yellow for Bellerin.

Olivier Giroud is about to come on - he scored twice the other day.

They might need a Match of the Day before Match of the Day tonight.

Arsenal - who could not have done more to score a hatful... apart from scoring a hatful - test David De Gea again as Alexis Sanchez fires another powerful effort that stings the palms of the United keeper.

De Gea can cancel that Monday spin class - he's had a decent workout.

• Alexandre Lacazette has netted six home goals in the Premier League this season, more than any other player.
• That's now six league assists this season for Ramsey, only in 2013-14 has he had more assists (eight).

Didn't he then get injured in December?

He's back on the pitch.

Nasty little clash of heads between Laurent Koscielny and Nemanja Matic.

United's Matic needs some assistance but he seems OK to continue.