KICK-OFFpublished at 19:46 British Summer Time 12 September 2017
Elsewhere
And away we go at Celtic Park, Old Trafford, the Nou Camp...
FT: Manchester United 3-0 Basel
Sub Fellaini, Lukaku & Rashford
FT: Chelsea 6-0 Qarabag FK
Pedro, Zappacosta, Azpilicueta, Bakayoko & Batshuayi (2)
FT: Celtic 0-5 PSG - Neymar, Mbappe & Cavani (2), Lustig own goal
FT: Barca 3-0 Juve in pick of other ties
Elsewhere
And away we go at Celtic Park, Old Trafford, the Nou Camp...
Chelsea 0-0 Qarabag
One game is bang on schedule - under way at the Bridge...
Manchester United v Basel (19:45 BST)
Plenty of pyro in the Basel end at Old Trafford. Smoke aplenty.
#bbcfootball or 81111 on text
Harford James: with so much quality teams and money, this year's champions league will be the most unpredictable yet.
Harry Winter: As a Liverpool fan living in Paris (supporting PSG) even I have to admit Celtic more than did YNWA justice #Goosebumps, external
There's that music! Yes.
Barcelona v Juventus (19:45 BST)
A colourful scene at the Nou Camp as the flags are waved to welcome the sides. Former Borussia Dortmund winger Ousmane Dembele is making his first start for Barca.
I can see 16 teams lined up in eight tunnels across Europe - it's raining in Manchester now, obviously.
Very heavily in fact.
All set everyone?
How do you properly pronounce Robert Lewandowski? What is the correct way to say Oguzhan Ozyakup?
Uefa have decided to cater for English fans with a propensity for garbling the names of foreign footballers bu producing their own pronunciation guide for Champions League players.
You can have a read here. , external
Man Utd v Basel (19:45 BST)
Manchester United manager Jose Mourinho, on BT Sport: "Back to normality. For us, as a group, after one season playing Europa League, is a change and a change for more motivation and more difficulty.
On Victor Lindelof and Chris Smalling playing together: "They work together every day since the moment we know they would be the obvious choice for this match. The understanding is good. They are good players. I trust them.
On Ashley Young: "He is a fit guy and works hard. It is not difficult for him to get the fitness levels to play. We believe Ashley can give us what we need. By having Antonio (Valencia) on the bench we have protection."
Chelsea v Qarabag (19:45 BST)
Chelsea
Chelsea boss Antonio Conte told BT Sport: "We are proud to play in this competition this season. We are looking forward to playing. I think that now we are ready."
Chelsea v Qarabag (19:45 BST)
This is Chelsea’s 15th Champions League participation, the third most for an English club after Manchester Utd (21) and Arsenal (19). They are also the last English club to win the competition (2012).
Manchester United v Basel (19:45 BST)
Simon Stone
BBC Sport
It looks like a glimpse into the Manchester United future at Old Trafford tonight.
With Michael Carrick and Antonio Valencia on the bench, Paul Pogba has been named captain even though Chris Smalling, who also starts, has done the job in the past.
When I asked Jose Mourinho earlier this summer if Pogba was captaincy material, the United boss said he was and hinted he would be United's next long-term skipper.
Manchester United v Basel (19:45 BST)
The BBC Radio 5 live correspondent is all prepped with his binoculars and handwritten notes.
#BBCUnsungHero
While we are looking across Europe to bring you the Champions League football tonight, we want you to look across the UK for any volunteer who devotes their free time to help people in grass-roots activity and sports.
Yes, we've started the search for the BBC Get Inspired Unsung Hero for 2017 and it's time to send in your nominations.
Let last year's winner tell you more....
To find out more about how the award is even bigger this year, find all the details (and how you can nominate someone) here.
Barcelona v Juventus (19:45 BST)
Barca and Juve are exactly level in their nine encounters in the Champions League – three wins, three draws and three defeats apiece 10 goals for and against.
Celtic v PSG (19:45 BST)
It's estimated that PSG's likely starting XI will be worth about £540m compared to Celtic's £11.4m.
A real gulf. Spare a thought for Anthony Ralston - the 18-year-old right-back facing Neymar tonight...
Roma v Atletico Madrid (19:45 BST)
Barca versus Juve is not the only mouthwatering Spain v Italy tie this evening as Atletico Madrid travel to the Stadio Olimpico to face Serie A runners-up Roma.
Atletico are a force to be reckoned with. Twice runners-up in the past four seasons, and a semi-final loss to eventual winners Real Madrid last season, coach Diego Simeone knows what to do, and how to do it, in the Champions League.
Roma are back in Europe's big time and have a point to prove, having missed out on qualifying for the group stages last season after losing to Porto in the play-offs.
In a group which also includes Premier League champions Chelsea, both sides will be looking to impress.
Crystal Palace
Well, that didn't take long.
Nothing screams south London more than Roy Hodgson does it?
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Chelsea v Qarabag (19:45 BST)
Chris Waddle
Ex-Spurs and England winger on 5 live Sport
You can't write Chelsea off. They are a talented and mentally strong team. With Conte's knowledge of Europe and experience with the Italian national team, he should be able to use and rotate his squad.
Feyenoord v Man City (Wed, 19:45 BST)
Manchester City take on Feyenoord tomorrow and their players have taken to social media to record the journey...