More concern for Chelsea. Defender Kalidou Koulibaly goes down awkwardly.

Marc Cucurella is sent to warm-up but Koulibaly, after a few moments of treatment, jogs off to the touchline. He should be OK to carry on.

City defender Sergio Gomez goes down in the Sevilla box. No penalty. No players shouted for one to be fair.

The hosts are dominating possession.

Alistair Bruce-Ball
Commentator on BBC Radio 5 Live

Bruno Petkovic heads in from close range. Chelsea have already won this group, but having been beaten 4-1 by Brighton on Saturday that is a terrible start.

Jack Grealish is bundled over on the left after some nice skill. The English/former Irish Miguel Almiron.

Pierre-Emerick Aubameyang gives a foul away in the opposition half. A few moments later he thinks he's away but Denis Zakaria has fouled this time. Very scrappy so far.

Simon Stone
BBC Sport at the Etihad Stadium

The rain is teeming down again and Pep Guardiola has his hood up.

The Manchester City boss is keeping a close eye on what is happening though and he just gave Stefan Ortega a pronounced thumbs up for the way he played out from the back just then.

The players change but the style stays the same as City ping the ball around confidently.

The away fans are in fine voice in London. Neither team has got the ball down and settled yet.

Izzy Christiansen
Everton and England midfielder on BBC Radio 5 Live

Really close to a perfect start for Cole Palmer - it was a perfect cutback and arguably he should have found the back of the net.

Chance for City youngster Cole Palmer now. Sevilla keeper Bono passes the ball straight to Jack Grealish and it finds its way to Palmer, who shoots over from outside the box.

Both sides have made errors already in this rain.

A back four for Chelsea tonight. Graham Potter has named quite a strong team too. Zagreb must win to stand any chance of securing third spot and getting Europa League football. They need Salzburg to lose to AC Milan as well.

Sevilla have a chance within 25 seconds as Rafa Mir runs onto a long ball after a defensive mix-up and tries to lob Stefan Ortega but it sails over the bar.

Izzy Christiansen
Everton and England midfielder on BBC Radio 5 Live

These are the best nights. The rain coming down, a fast, zippy surface. A front three for Manchester City with a bit of a point to prove. I would say we are in for a treat tonight.

Off we go at Stamford Bridge.

We are under way in a rainy Manchester. Big-time rain.

It's VERY windy in London tonight. The players walk out to torrential rain.

BBC Radio 5 Live

Listen to live commentary from Manchester on BBC Radio 5 Live, including on this page.

BBC Radio 5 Live

Journalist Yannick Hubert, of German sports magazine Sport Bild, speaking on BBC Radio 5 Live: "The four most interested clubs [in Jude Bellingham] of Manchester City, Liverpool, Chelsea and Real Madrid are already in concrete preparations for a possible transfer.

"But we now know Liverpool are willing to pay 100m euros (£86m) for him. It would definitely be next summer. They want him as the new face of the Reds, but it is doubtful if 100m euros will be enough to get him because Chelsea, City and Madrid have the better financial possibilities."

Copenhagen midfielder Roony Bardghji, at 16 years and 352 days old, is the fifth player under the age of 17 to start a Champions League match after Celestine Babayaro, Anthony Vanden Borre, Youri Tielemans and Ansu Fati.

The Sweden Under-21 international was born in Kuwait and is also eligible for Syria.

Of course with a name like that, he's been dubbed 'the Swedish Wayne Rooney'.