City debutant Elliot Anderson shoots miles over from outside the box.

You don't often see a dummy shot like that in proper football. Fantastic skill.

Alex Howell
BBC Sport Arsenal reporter at Principality Stadium

And with that it's surely game over. Tzolis with another assist and Odegaard rolls the ball in after sitting Donnarumma down.

There's a real party atmosphere inside here now.

This is Jack Grealish's first City game since the end of 2024-25. He spent last season on loan at Everton in a deal which wasn't made permanent. But it still seems likely he'll have to find a new club this month.

Arsenal had scored by now in the first half.

City get the second half under way.

Arsenal bring on their own Anglo-Irishman in Declan Rice. Debutant Bruno Guimaraes is off.

Yes Jack Grealish is coming on. Not sure we expected to see him in a Manchester City shirt again. Jeremy Doku coming off.

Jack Grealish is getting some instructions at half-time. Interesting.

Arsenal have won all 58 games under Mikel Arteta in which they have led at half time by two or more goals.

Pat Nevin
Former Everton winger on BBC Radio 5 Live

Every player out there, except one, looks comfortable for Arsenal.

The one player who needs to grow into it is Bruno Guimaraes, not his fault, he just needs to know where he fits in and that will happen over time.

Image source, Getty Images

Izzy Christiansen
Former Man City midfielder on BBC Radio 5 Live

You can feel the intensity of the stadium and how Arsenal played.

They were front-footed, scored within 30 seconds and slowed it down a little bit towards the end of the first half.

I think Mikel Arteta has picked up where he left off and he's treating the game like a Premier League fixture. Whereas I think City are exactly where we thought they'd be.

Image source, Getty Images

Alex Howell
BBC Sport Arsenal reporter at Principality Stadium

That's an excellent first-half performance from Arsenal.

The champions have really dominated the game and not given Manchester City a chance to catch their breath.

The Arsenal midfield three of Bruno Guimaraes, Myles Lewis-Skelly and Martin Odegaard have run the game.

Pat Nevin
Former Everton winger on BBC Radio 5 Live

I've been watching Nico O'Reilly closely, and he's playing the left-back role but in the attack he goes and leaves it. But because they've been so slow building up, he's getting to the centre-forward position and he just stands there.

That's not how you score a goal, you have to run onto it. He has to get into the habit of when the ball comes in, I'll go onto it and attack it.

I think his manager needs to have a word with him.

Image source, Getty Images

Kai Havertz has been involved in more goals against Manchester City (seven - four goals, three assists) than against any other side in his career.

One of those goals was the winner for Chelsea in the 2021 Champions League final.

Riccardo Calafiori gave the Gunners the lead after only 23 seconds with Kai Havertz doubling it after 28 minutes. A lot of work to do for City in the second half.

Arsenal fully deserve this half-time lead.

Arsenal go so close again. Martin Odegaard scrambles a shot past Gianluigi Donnarumma but it's blocked by Josko Gvardiol on the line.