RESULT: Celtic 0-3 Real Madrid - Vinicius Jr, Luka Modric and Eden Hazard goals put Madrid in control
RESULT: Sevilla 0-4 Manchester City - Erling Haaland scores twice, Phil Foden and Ruben Dias also on target for visitors
RESULT: Dinamo Zagreb 1-0 Chelsea - visitors dominate early stages but Mislav Orsic's goal against run of play earns win
Pierre-Emerick Aubameyang makes Chelsea debut but is subbed off after 59 minutes
Use play icon at top of the page to watch 5 Live Final Score or audio icon to listen to commentary (from 19:00 BST)
First round of group stage fixtures
Eight matches this evening including Chelsea, Manchester City and Celtic
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Sevilla 0-3 Man City
Robbie Savage
Ex-Wales midfielder on BT Sport 2
He’s just brilliant, Haaland. Right place, right time. Another goal, one-touch again. Second goal of the night, 12th of the season. Quite remarkable!
Shakhtar Donetsk lead Leipzig 2-1. The Germans briefly equalised before Marian Shved netted his second.
Benfica lead Maccabi Haifa 2-0 with Alex Grimaldo getting a goal and an assist.
Sevilla 0-3 Man City
That's 12 goals for Erling Haaland in his first seven games for Manchester City (eight if we count the Community Shield).
And 25 goals in 20 career Champions League appearances!
Erling Haaland
Yep.
Phil Foden drills in a low shot which Bono parries... and there is Erling Haaland, 10 yards out, who slots home.
Sevilla 0-2 Man City
Nemanja Gudelj shoots wide with one of Sevilla's few clear-cut chances.
Sevilla 0-2 Man City
Ilkay Gundogan puts the ball in the net with almost his first touch but it's disallowed.
A ball is played into the box and Phil Foden heads it across to Gundogan, who can't miss an open goal.
But Foden was offside.
Sevilla 0-2 Man City
Rafa Mir can't make proper contact with a cross and chance gone for Sevilla.
Real Madrid are 2-0 up at Celtic now, with Luka Modric scoring a lovely goal.
Sevilla 0-2 Man City
Jack Grealish, who was involved in that chance too, is replaced by Ilkay Gundogan.
Sevilla 0-2 Man City
Erling Haaland has missed a chance. Sergio Gomez puts in a low cross which Haaland puts over from six yards out, under heavy pressure from a defender.
Vinicius Jr has just given Real Madrid a 1-0 lead at Celtic.
Hope for Juventus.
Max Allegri's half-time change has worked as Weston McKennie comes on and thumps in a header from a corner to pull a goal back for the Serie A side against PSG. It's 2-1 now.
Still over half an hour remaining in this one.
Phil Foden
Class.
Phil Foden is just so good. Joao Cancelo cuts the ball back to the England international. He just shuffles the ball past a defender - and then the other way - and suddenly pings the ball into the bottom corner from 16 yards. Keeper couldn't get near it.
Sevilla 0-1 Man City
Sevilla bring on Kasper Dolberg for Alex Telles. A forward for a defender.
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Sevilla 0-1 Man City
Good keeping by Ederson, who must almost have forgotten he's involved in a football game, to catch Jesus Navas' low cross.
Sevilla 0-1 Man City
Rafa Mir is definitely giving City's centre-backs more to do in this second half. Sevilla didn't really have a striker before the break.
Rodri shoots over for City.
Sevilla 0-1 Man City
Bernardo Silva crosses and Erling Haaland does one of those acrobatic leaps while flicking out the leg he seems to do. He can't make contact with it. There are slight penalty shouts but nah.
Sevilla 0-1 Man City
City should make it two straight after a good Sevilla spell.
Erling Haaland plays Kevin de Bruyne in one on one from midfield. The Belgian races into the box and tries to slot the ball into the bottom corner but it's well saved by Bono.
Sevilla 0-1 Man City
Sevilla have started this half a bit brighter, getting some balls into the mixer.