Southampton change. Nathan Redmond is on for Jake Vokins.

Danny Ings almost dances his way to a goal, beating three players before Bernd Leno comes over to close him down on the byline.

Arsenal are sitting in and look comfortable but Yan Valery is seeing lots of the ball for Southampton on the right.

He's putting in some nice deliveries but so far Rob Holding, David Luiz and Cedric Soares are holding firm.

Matty Phillips has a chance to carry the ball into the Manchester City half, but John Stones pinches it off him and is then fouled by the substitute

Hal Robson-Kanu is Sam Allardyce's last change. Karlan Grant goes off.

Paul Collins: lease let this be the last job Allardyce gets in premier league football. Hope he takes west Brom down, it looks like he will, as then he wont even have that to possibly attract other PL clubs in future. Past it out of touch dinosaurs like him and Bruce need to go.

levelplayingfield: Any news on Alladyce changing the way he plays, just asking for some friends...

Yan Valery swings it in from the right but Theo Walcott can't get it under control. Cedric Soares then pings it over to Bukayo Saka on the right.

He fizzes it across the box but Alexandre Lacazette won't get there.

Conor McNamara
BBC Radio 5 live commentator

Raheem Sterling's goal is probably the most aesthetically pleasing of the Manchester City goals this evening!

Man City are just toying with West Brom now. It's almost as if they are trying to score the perfect goals now.

They are thoroughly enjoying themselves on the way to the top of the table.

Change for City too. Gabriel Jesus gets a run out, just what West Brom need...

Bernardo Silva gets a rest.

Robert Snodgrass goes off. Matty Phillips takes his place.

Cedric Soares almost picks out Bukayo Saka in the middle. It bounces off Yan Valery dangerously in the box but Jack Stephens reacts to hoof it away.

Alistair Bruce-Ball
BBC Radio 5 live commentator

It's been a joy to watch this game. So much better than the FA Cup on Saturday.

It's a wide open game, end to end and the second half has started in a very similar vein.

And here's a little stat for you...

If Theo Walcott scores against Arsenal this evening, having already scored against them at the Emirates earlier this season, he would become only the fourth former player to score home and away against Arsenal in the same Premier League season.

Ederson has to be alert to rush out and boot a ball over the top clear. First time West Brom have really turned City this half, and it never threatened to come to much.

Hector Bellerin fires it dangerously across the face of the goal but Nicolas Pepe can't quite divert it goalwards from the near post.

His touch ends up taking it away from Alexandre Lacazette.

Carl Lavery: Wasn't Slaven Bilic's last match in charge a 1-1 with Man City away?

Cedric Soares slips it in behind. Emile Smith Rowe gets there ahead of Alex McCarthy but the angle is tight and there's nobody in the centre to pick up the loose ball as it rolls across the six-yard area. Jack Stephens eventually clears.

Double change for Manchester City, Ilkay Gundogan and Phil Foden are replaced by Ferran Torres and Aymeric Laporte.

Jake Vokins brings down Bukayo Saka as he gets the better of him on the right. Emile Smith Rowe curls in the free-kick.

Nicolas Pepe lets it run but it's cleared before Granit Xhaka stamps on the foot of Che Adams.