RESULT: Man City 5-0 Copenhagen - Erling Haaland scores twice in first half before being taken off at break. Own goal, Riyad Mahrez penalty and Julian Alvarez tap-in earn win
RESULT: Chelsea 3-0 AC Milan - Wesley Fofana, Pierre Emerick-Aubameyang and Reece James on target for Blues
RESULT: Real Madrid 2-1 Shakhtar Donetsk
RESULT: Sevilla 1-4 Borussia Dortmund - captain Jude Bellingham scores and assists
RESULT: Benfica 1-1 PSG
RESULT: Juventus 3-1 Maccabi Haifa
RESULT: RB Leipzig 3-1 Celtic
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Man City 5-0 Copenhagen
Jack Grealish laughs as his volley bounces just wide of the post... again. It's another good effort as he catches Riyad Mahrez's cross well but can't wait find the target. He's had so many chances but they just won't go in.
Chelsea 3-0 AC Milan
Matt Upson
Former England defender on BBC Radio 5 Live
I think Broja is an exciting player but he needs to play more in order to define whether he is good enough for a place in this Chelsea team.
He is someone Milan now need to be wary of.
Image source, Getty ImagesMan City 5-0 Copenhagen
Erling Haaland has rocked up for work tonight, banged in two goals in 45 minutes, gone off at half-time, grabbed a shower and got changed and has now come back out to sit with Phil Foden for the last 10 minutes as Manchester City cruise to victory in the Champions League.
Man City 5-0 Copenhagen
Another Jack Grealish effort but it's straight at the keeper. He's getting closer!
Image source, Getty ImagesSevilla 1-4 Borussia Dortmund
Julian Brandt quashes Sevilla's hopes of a comeback by heading Dortmund's fourth with 15 minutes remaining.
Chelsea 3-0 AC Milan
Mason Mount is replaced by Kai Haverz for Chelsea. Raheem Sterling coems off for Armando Broja.
Man City 5-0 Copenhagen
Man City are not done yet. Cole Palmer fires a brilliant ball across the middle but nobody is there to get on the end of it.
It then comes out to Jack Grealish who curls it inches wide of the right post.
Chelsea 3-0 AC Milan
Matt Upson
Former England defender on BBC Radio 5 Live
Milan have just been overrun, Chelsea look physically very good at the moment.
Chelsea 3-0 AC Milan
Milan make a triple sub as Brahim Diaz, Divock Origi and Tommaso Pobega replace Rafael Leao, Olivier Giroud and Ismael Bennacer.
Giroud gets a good ovation from the Chelsea fans.
#bbcfootball
Been a Man City fan for seven years now and seen a lot of quality players, but Haaland beats them all.
J Staggs
I'm a Southampton fan and starting to think losing 9-0 against Man Haaland this weekend might be a good result.
Jasper
Julian Alvarez (76 mins)
A lovely goal from Manchester City with Riyad Mahrez at the heart of it.
He flicks it over the toe of the full-back and then slides it across the six-yard area for Julian Alvarez to poke in from close range.
Image source, Getty ImagesChelsea 3-0 AC Milan
Chelsea captain Thiago Silva can't catch Rafael Leao and brings down the Milan forward, earning himself a yellow card.
Man City 4-0 Copenhagen
Some defending to do for City!
Young Rico Lewis comes back to make a crucial block to deny Mukariu after he'd got into space in the box for Copenhagen.
From the corner, a header is flicked on and bounces dangerously wide of the far post.
Man City 4-0 Copenhagen
Still around 20 minutes to go at the Etihad Stadium and there's a strong training ground feel.
Pep Guardiola has given two Champions League debuts to teenagers, Erling Haaland scored twice in a 45-minute cameo, Riyad Mahrez and has got one in the bag and the likes of Phil Foden and Kevin de Bruyne are rested on the bench.
#bbcfootball
Deldude: Oh Reece, oh Recce that is a mean way to score….like an Arrow to the Top. There is no stopping that.
Scott: Pep's clearly worried: Haaland off at half time to save him for the massive match against Southampton this weekend...
Chelsea 3-0 AC Milan
Now Chelsea are playing like a Graham Potter team, pinging the ball all over the pitch.
Chelsea 3-0 AC Milan
Aged 22 years and 301 days, Reece James is the youngest Chelsea player ever to both score and assist a goal in the same Champions League game.
He's good at the ol' football, isn't he.
Chelsea 3-0 AC Milan
Not a bad night's work for Pierre-Emerick Aubameyang with his second consecutive goal for Chelsea.
He's not missing Thomas Tuchel too much on the pitch.
Image source, Getty ImagesMan City 4-0 Copenhagen
Julian Alvarez has had a fairly quiet night in terms of chances but he's set-up by a reverse pass from Jack Grealish in the box. The angle is tight and Alvarez can only find the side-netting. Decent effort.
Chelsea 3-0 AC Milan
Chelsea bring on midfielders Jorginho and Conor Gallagher for goalscorer Pierre-Emerick Aubameyang and Mateo Kovacic.
Milan replace Rade Krunic and Charles de Ketelaere with Matteo Gabbia and Ante Rebic.