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FT: Manchester City 2-1 Borussia Dortmund - Bellingham puts visitors ahead but Stones levels & Haaland completes comeback
FT: Chelsea 1-1 Red Bull Salzburg - Sterling with opener but Okafor levels
FT: Celtic 1-1 Shakhtar; Rangers 0-3 Napoli
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Chelsea 0-0 RB Salzburg
Raheem Sterling plays it wide to Kai Havertz, who has loads of space to send in a cross from the left flank but can't beat the defender at the near post.
At the other end, RB Salzburg go direct and long but Kepa Arrizabalaga dashes out of his penalty area to head it clear.
Juventus 1-0 Benfica
Juventus have taken just four minutes to take the lead against Benfica at Allianz Stadium, Arkadiusz Milik heading home from a free kick.
PSG are still goalless at Maccabi Haifa - Kylian Mbappe blazing over a great chance after only 67 seconds - while it is also 0-0 between Real Madrid and RB Leipzig.
At Ibrox, Rangers almost led after 30 seconds when Alfredo Morelos chested wide, before Piotr Zielinski hit the post for Napoli. Updates on that game here.
Man City 0-0 Dortmund
Dion Dublin
Former England striker on BBC Radio 5 Live
It does feel as though Dortmund are allowing City to have the ball and then when they get it, they try to break. Whether it’s in the Premier League or in Europe, allowing City that possession is a dangerous game to play.
Man City 0-0 Borussia Dortmund
Free-kick to City as ex-Birmingham man Jude Bellingham fouls ex-Villa man Jack Grealish.
Chelsea 0-0 RB Salzburg
Jorginho and Kepa Arrizabalaga get lucky as the referee blows for a foul on the midfielder after the goalkeeper had fizzed a pass at his team-mate.
Jorginho was challenged and lost the ball 25 yards from his own goal but just as RB Salzburg thought they were through on goal, the referee's whistle goes so Chelsea get away with it.
Man City 0-0 Borussia Dortmund
Nothing resembling a chance yet. Dortmund captain Marco Reus puts in a cross which is cleared by his old team-mate Manuel Akanji.
Chelsea 0-0 RB Salzburg
Alistair Magowan
BBC Sport at Stamford Bridge
It looks like three at back for Chelsea with Cesar Azpilicueta, Thiago Silva and Marc Cucurella. Reece James and Raheem Sterling are the wing-backs.
Bold from Graham Potter.
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Chelsea 0-0 RB Salzburg
Graham Potter, involved in his first Champions League match, has started off with Chelsea in a back three.
Kai Havertz has a shot blocked and it falls to Pierre-Emerick Aubameyang on the stretch and he hooks it goalwards but can only put it over the top.
Man City 0-0 Borussia Dortmund
All City so far. Riyad Mahrez has a cross caught.
City captain Ilkay Gundogan and Dortmund defender Mats Hummels are the only players on the pitch who have won the German title with Dortmund.
Chelsea 0-0 RB Salzburg
Alistair Magowan
BBC Sport at Stamford Bridge
Impeccably observed minute's silence at Stamford Bridge.
Image source, Getty ImagesWe have had a minute's silence at both Stamford Bridge and Etihad Stadium, with the fans, players and officials paying their respects to Queen Elizabeth II.
Man City 0-0 Borussia Dortmund
Simon Stone
BBC Sport at the Etihad Stadium
No noise, other than the odd clang of a seat dropping down.
The picture of Queen Elizabeth on the big screen was the perfect backdrop to Manchester City's tribute.
Man City 0-0 Borussia Dortmund
After a well observed minute's silence following the death of Queen Elizabeth II, we are under way.
Chelsea v RB Salzburg (20:00 BST)
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Man City v Borussia Dortmund (20:00BST)
Simon Stone
BBC Sport
The music and LED screens have been turned off at the Etihad Stadium.
Man City v Borussia Dortmund (20:00 BST)
And at Etihad Stadium...
Image source, .
Image source, .Chelsea v RB Salzburg (20:00 BST)
Here's a reminder of how the teams line up at Stamford Bridge...
Image source, BBC Sport
Image source, BBC SportMan City v Borussia Dortmund (20:00 BST)
Borussia Dortmund are looking for their first away win against an English side in the Champions League since October 2013, when they won 2-1 at Arsenal.
Henrikh Mkhitaryan and Robert Lewandowski scored their goals that day.
Chelsea v RB Salzburg (20:00 BST)
Graham Potter hopes to build a connection with Chelsea fans sooner rather than later. On the eve of his managerial debut at Stamford Bridge, Potter was asked what success this season would look like.
He said: "It's about connecting with supporters, them recognising the team, working at Cobham. Success is to see improvement and be competing to win.
"I’ve always said the connection between the supporters and the team is an important thing. I'm the head coach and a member of the team, an important member but no more important than anybody else.
"I’d love their support and everything I have heard so far is that I have that. It’s amazing and I'm thankful for their support.
"In terms of what I can promise, we are playing a game that is uncontrollable. So I can promise I'll do my best every single day and take responsibility. The team I'd like to see is one that is a balanced team in terms of attack and defence, a humble team, a respectful team that when they don’t have the ball runs and fights because that is important also.
"We want to entertain, of course we do. We want to create our own team and identity and we will fight every day for it."