Arsene Wenger is 20 minutes away from a first competitive victory over Jose Mourinho. 

I suspect if you've made your mind up about him that won't change things but still. He will be loving this.

Marcus Rashford has space to collect and turn back to find another blue shirt as he runs to collect a ball over the top. 

Much more pressure on the Arsenal back four from the away side now. But Axel Tuanzebe's called back for a clip on Granit Xhaka - the man whose deflected shot broke the deadest of deadlocks.

Image source, Reuters

Paul Humphreys: Mourinho doesn't believe in this team. Negative defensive tactics against a poor arsenal side. Should have come to attack.

Luke: United are such a dire team to watch. Without De Gea they would be humiliated every game. No wonder he wants out again!

Image source, Getty Images

Laurent Koscielny is really untidy with a reaching challenge on Anthony Martial and goes in the book. 

Juan Mata to take wide right - but the delivery is poor again.

Image source, Getty Images

Petr Cech fends off a Wayne Rooney free-kick that was just creeping inside the near stick with a fingertip stop. 

A good save - but does Cech feel he might have held it, as he picks himself up with a shake of the head? 

Jesse Lingard's battling out there after coming on, he wins another Manchester United corner, but the Gunners see it to safety.

Mark Schwarzer
Ex-Middlesbrough keeper on BBC Radio 5 live

Ander Herrera has come off for Marcus Rashford - Jose Mourinho is going for it. He has an attacking team out there.

Alex Oxlade-Chamberlain has made as many assists for Arsenal in the Premier League this season as in his previous five campaigns - seven.

His cross for Danny Welbeck was a beaut.

Image source, Reuters

Resting players with Thursday in mind, or looking to transform the game? 

Marcus Rashford definitely has the talent to turn things. He is on for Ander Herrera. Striker on, midfielder off.

The Europa League can wait.

Image source, AFP

Jesse Lingard comes on for Manchester United, with Henrikh Mkhitaryan off, in the first change of the match. 

Marcus Rashford is also getting ready.

Well that escalated quickly. This was a pedestrian game going nowhere in particular. Two goals in three minutes from Arsenal put paid to all that.

Football eh?!

Khael Malik: Why go in to block the ball if you're going to avoid it anyway?

Aron Moore: To be fair - as Sir Alex says - that could have killed Herrera.

Richard Browne: Own goal all day long ; that's going into DeGea's hands before Herrera finished it.  

Mark Schwarzer
Ex-Middlesbrough keeper on BBC Radio 5 live

That's really poor defending in the middle of six-yard box by Manchester United.

Danny Welbeck is left completely unmarked because Chris Smalling thinks he is going to win the header further up and he totally misjudges it. 

Mark Schwarzer
Ex-Middlesbrough keeper on BBC Radio 5 live

Granit Xhaka had a lot of luck on his side there - that's what Arsenal needed. It looked like it was going miles over the crossbar.

Ander Herrera has turned his back and ducked, had he stayed big he would have taken one on the chin - but the ball wouldn't have gone in.

That will hopefully lift this game and wake both teams up.

Mark Schwarzer
Ex-Middlesbrough keeper on BBC Radio 5 live

It has been a scrappy start to the second half.

It is very flat again which I find remarkable considering what is at stake here. Either of these teams win and they are well in the hunt for the Champions League positions.

You would expect them to come out of the blocks, especially Arsenal.

It has been a disappointing start.

Jonathan Pearce
Match of the Day commentator

Someone make a tackle! 

Axel Tuanzebe with a loose ball down the line, snatched up by Nacho Monreal. 

And another one that goes astray from Tuanzebe, passed straight to an Arsenal shirt in the middle. But now he does well to settle the nerves with a strong challenge to bounce Alexis Sanchez away from goal. Good recovery from the 19-year-old debutant.