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West Ham 0-1 Arsenal
Arsenal get on with business as Gunners fans celebrate that opener by belting out William Saliba's song.
It should be 2-0 as Bukayo Saka heads a decent chance wide.
All Arsenal at the moment.
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FT: Aston Villa 1-2 Man Utd - Hojlund taps home from close range, Luiz equalises but McTominay heads visitors back ahead
FT: West Ham 0-6 Arsenal - Saliba heads home Rice corner before Saka (2), Gabriel, Trossard and Rice
Gunners record their biggest away Premier League win
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Gary Rose and Steve Sutcliffe
West Ham 0-1 Arsenal
Arsenal get on with business as Gunners fans celebrate that opener by belting out William Saliba's song.
It should be 2-0 as Bukayo Saka heads a decent chance wide.
All Arsenal at the moment.
West Ham 0-1 Arsenal
Michael Brown
Former Tottenham midfielder on BBC Radio 5 Live
No wonder all the staff at Arsenal want credit, the efforts they've put in from the training ground. It's clever, White blocks Areola so he can't get there. It's a simple one for Saliba who heads into an empty net, one from the training ground goes right. It's basic.
William Saliba
William Saliba heads Arsenal into the lead!
It has felt like only a matter of time Arsenal did some damage from a set piece and so it proves as Saliba rises to meet Declan Rice's corner to nod in from close range.
West Ham 0-0 Arsenal
Gabriel Martinelli races into space down the left before getting into the box and crossing low across the face of goal, but Martin Odegaard just can't get to the ball in time.
West Ham 0-0 Arsenal
Michael Brown
Former Tottenham midfielder on BBC Radio 5 Live
Arsenal draw you in well and they overload the edge of the area. Coufal does well to get his body in the way.
West Ham 0-0 Arsenal
Michael Brown
Former Tottenham midfielder on BBC Radio 5 Live
West Ham look promising on the counter, but they need to get more of the ball.
West Ham 0-0 Arsenal
There's been lots of deflected shots and crosses in this game as Martin Odegaard's strike from distance hits Vladimír Coufal and, much to the relief of the West Ham player, it bounces wide of the far post.
West Ham 0-0 Arsenal
A wasted opportunity for West Ham as they once again attack down the left but Mohammed Kudus' cross deflects off Ben White and into David Raya's gloves.
West Ham 0-0 Arsenal
Michael Brown
Former Tottenham midfielder on BBC Radio 5 Live
It's wonderful play. Trossard keeps his head down, a sidewinder of a volley. Nobody spotted it, a dinked cross. Those are the positions from Martinelli that make the difference.
West Ham 0-0 Arsenal
Best chance so far as Gabriel Martinelli sends a great ball in from the right, Kai Havertz wisely ducks out of the way and Leandro Trossard connects perfectly with the volley but Alphonse Areola tips the strike over.
West Ham 0-0 Arsenal
Michael Brown
Former Tottenham midfielder on BBC Radio 5 Live
Wonderful play down the right hand side, Sake opens it up, it's a lovely cross. Trossard has his hands over his head. That's a big, big chance. Someone who can head well, it's a definite goal.
West Ham 0-0 Arsenal
Decent chance for Arsenal as Bukayo Saka finds Leandro Trossard with a great ball into the box but Trossard loops his header over.
West Ham 0-0 Arsenal
This is a good spell for West Ham as they come forward again, this time Jarrod Bowen attacking through the middle. He has support to his left and right but decides to go for goal and a deflection on his shot makes it a comfortable save for David Raya.
West Ham 0-0 Arsenal
Michael Brown
Former Tottenham midfielder on BBC Radio 5 Live
You've got to stay with your runners, Arsenal don't do that. A good covering run, Kudus on the back post thought he was a metre away from getting that.
West Ham 0-0 Arsenal
VAR has a check of some shenanigans inside the box following the corner as Tomas Soucek goes down, but nothing is given.
West Ham 0-0 Arsenal
A good attack by West Ham down the left as Ben Johnson sends in a dangerous low cross that Jakub Kiwior has to put behind, with Mohammed Kudus looking to pounce.
It gives the Hammers their first corner but Gabriel heads away.
West Ham 0-0 Arsenal
West Ham's players are doing a good job of closing Arsenal players down quickly when they have the ball and the Gunners have looked a bit uncomfortable at times at being pressed high up.
West Ham 0-0 Arsenal
West Ham are clearly looking to Mohammed Kudus to provide their moment of magic. They are getting the ball to him when they do attack but Arsenal's defence has limited Kudus' options on the ball so far.
West Ham 0-0 Arsenal
West Ham have seven players packing their box and it is making it difficult for Arsenal to get a sight of goal as Bukayo Saka's shot is deflected behind for another corner.
This one is played short to Martin Odegaard, who swings the ball to the far post and it is put behind for another corner.
West Ham 0-0 Arsenal
Michael Brown
Former Tottenham midfielder on BBC Radio 5 Live
Gabriel is asking what type of challenge is that. Alvarez caught Saka on the outside of his left foot. No wonder he ended up in the sky. Alvarez can't complain about that.