Aamer Iqbal: Matic off and McTominay on for the second half, if it doesn't change. He was very good against PSG.

Agubata: Lukaku is really very talented, his misses make for glorious watching.

Arsenal defender Sokratis is apoplectic here as he is booked for a high challenge on Paul Pogba.

The Greek feels he has not touched his opponent, referee Jon Moss thinks otherwise and brandishes a yellow card.

Danny Mills
Former England defender on BBC Radio 5 live

Romelu Lukaku forced his way through with pace and power there. And it's a good initial save Bernd Leno. Then, Lukaku snatches at the second effort and flashes it wide.

Image source, Reuters

United cut Arsenal open at the back, brilliant, intricate passing from Marcus Rashford, Paul Pogba and then Romelu Lukaku inside the area.

The big, Belgian lumbers past Bernd Leno, but the goalkeeper does well to get back, getting a hand on Lukaku's goalbound shot.

Nice interplay between Alexandre Lacazette and Pierre-Emerick Aubameyang, but the Frenchman is slipping as he takes a shot of the edge of the box and spoons it horrible wide.

Jerry Elumeze: Forget a central defender. MUFC needs a midfielder who can sit in front of the defence and break up the opposition attack. Matic isn't doing that. MUFC allow too many passes around them.

Stuart Mitchell: Seems like a classic case of a champions league hangover from United so far. United look lethargic.

Image source, .

Who has impressed so far? Who needs to make an improvement?

Head over here to rate the players.

Ainsley Naitland-Miles trips Luke Shaw and referee Jon Moss does not initially give a free-kick, but gets a word in his ear.

Luke Shaw's cross is awful though, cleared out towards Diogo Dalot, but the Portuguese curls over.

Danny Mills
Former England defender on BBC Radio 5 live

Good move again from Arsenal down the left. Sead Kolasinac gets in again and he does well to fire the ball across the six-yard box but no one's there to tap it in.

Arsenal wing-back Sead Kolasinac is causing havoc down that left side, United cannot get to grips with him.

The former Schalke man puts in another dangerous cross which neither Alexandre Lacazette nor Pierre-Emerick Aubameyang can get on the end of.

When United do get forward, they are causing a few problems for the Arsenal defenders.

Romelu Lukaku aims to find Marcus Rashford at the back post, but Sokratis stretches out a leg to divert the ball for a corner.

What?? Referee Jon Moss points for a goal kick.

Image source, Reuters

Danny Mills
Former England defender on BBC Radio 5 live

Arsenal have dominated this game so far. Technically, United haven't had a shot on target yet - shots that hit the bar or the post are not on target.

Mr E: Not fair on keepers with these modern balls? What balls do they train with? Come on stop making excuses my six-year-old could of saved that.

Ryan: No matter how many millions a goalkeeper earns or whether you're one of the worlds best, just shows David de Gea is only human and took his eye off the ball for a split second. Lay off! Chelsea fan here.

We have seen very little of Paul Pogba so far.

The Frenchman though, takes aim with a shot from around 35 yards out which is straight down the throat of Bernd Leno.

Pogba hoping that ball caught the wind.

Arsenal looking very menacing in the final third.

Alexandre Lacazette works a yard and shoots, this time there is a massive deflection off Chris Smalling, but it is not troubling David de Gea.

Image source, Reuters

United frontman Marcus Rashford has had nothing to feed off today.

He does get the ball in acres of space inside the area, but screws a tentative shot miles wide.

David De Gea has conceded six goals from outside the area in the Premier League this season - double the amount he conceded last season (3).

Lovely approach play from Arsenal and could have been two,

Ainsley Maitland-Niles burst down the right and cuts the ball back into the area for Aaron Ramsey, but it is a little behind the Welshman and he scoops the shot over.

Danny Mills
Former England defender on BBC Radio 5 live

That looked like a really tame shot from Fred but it's clipped the post. It's difficult coming onto the ball from that side but it's should have been a lot more comfortable for Bernd Leno than it was.

Image source, Getty Images