Half a chance for City as Fernandinho flicks a header over the top from an inswinging corner, 

Pat Nevin
Ex-Chelsea winger on BBC Radio 5 live

We've talked about Pep Guardiola and all these different formations for Manchester City. But Borussia Monchengladbach have gone for boring old 4-4-2. How dare they?!

City have started very well, holding the ball nicely. At the moment Gladbach can't get the ball.

Image source, AP

Celtic are through the first minute unscathed...

Follow that game in full here. 

It is a back three for Manchester City - of Aleksandar Kolarov, John Stones and Nicolas Otamendi. 

Pat Nevin
Ex-Chelsea winger on BBC Radio 5 live

Don't sit back expecting a quiet game. I am expecting goals - not only for City but for Monchengladbach as well.

Acracking match in Istanbul has just wrapped... 

Benfica threw away a 3-0 lead and it finished Besiktas 3 - 3 Benfica with Vincent Aboubakar equalising in the 89th minute. 

Earlier tonight, the Besiktas supporters, who have previously broken the decibel records for the loudest crowds, took part in a silent cheer... 

And we are up and running, in Germany, in London and in Glasgow.

City in their 'fruit salad' chews kit. 

Image source, AP

The teams are lined up across Europe, you can hear that anthem if you try hard enough...

Arsenal: Ospina, Jenkinson, Mustafi, Koscielny, Gibbs, Sanchez, Ramsey, Coquelin, Iwobi, Ozil, Giroud. Subs: Cech, Gabriel, Walcott, Oxlade-Chamberlain, Monreal, Xhaka, Elneny.

PSG: Areola, Meunier, Marquinhos, Thiago Silva, Maxwell, Verratti, Krychowiak, Thiago Motta, Lucas Moura, Cavani, Matuidi. Subs: Trapp, Kimpembe, Ben Arfa, Jese, Nkunku, Augustin, Ikone.

Referee: Felix Brych (Germany)

Pat Nevin
Ex-Chelsea winger on BBC Radio 5 live

That is an attack-minded Manchester City team. There is no lack of confidence. They want to win and they want to score goals.

Borussia M'gladbach: Sommer, Elvedi, Christensen, Jantschke, Wendt, Traore, Dahoud, Strobl, Johnson, Stindl, Raffael. Subs: Sippel, Vestergaard, Nico Schulz, Benes, Hofmann, Hahn, Rutten.

Man City: Bravo, Otamendi, Fernandinho, Stones, Kolarov, De Bruyne, Gundogan, Silva, Jesus Navas, Aguero, Sterling. Subs: Caballero, Sagna, Fernando, Nolito, Sane, Clichy, Iheanacho.

Referee: Cuneyt Cakir (Turkey)

The pundits are chewing over three different possible starting formations for Manchester City tonight.

Three at the back? Wing backs? Fernandinho in midfield, at right-back in a four or in a back three?

Image source, Getty Images

That's 11 goals in two early games then. Dortmund fever? 

What a comeback! Benfica were 3-0 up at the break but Vincent Aboubakar pops up in the 89th minute to give the Turkish side a point.

Benfica would have qualified with a win...

Celtic: Gordon, Lustig, Simunovic, Sviatchenko, Izaguirre, McGregor, Armstrong, Brown, Sinclair, Rogic, Dembele. Subs: De Vries, Toure, Bitton, Gamboa, Roberts, Forrest, Henderson.

Barcelona: ter Stegen, Sergi Roberto, Mascherano, Pique, Jordi Alba, Rakitic, Busquets, Andre Gomes, Messi, Luis Suarez, Neymar. Subs: Cillessen, Denis Suarez, Turan, Rafinha, Alcacer, Digne, Marlon.

Referee: Daniele Orsato (Italy)

Celtic boss Brendan Rodgers: "We came away from the 7-0 defeat at Barcelona and became a better team.

"Tonight we are at home and need the intensity and aggression we showed in the Manchester City game. If we do that it will be a lot more difficult for them.

"A good start is vital for us – the atmosphere will be incredible, people here for the first time will sample a real, true European game. We have no fear about the result."

"Every day is like a different day" says Pep Guardiola, almost channeling Morrissey as he dodges a pre-match interview. He also fails to clear up whether it's a back three or four tonight.

Thanks. 

Just 20 minutes until the big kick-off then. A reminder that Arsenal are already through but will win the group with a win tonight.

City qualify with a win, and probably with a draw.

Image source, AP

Aaron Theaker: Arsenal could win the group tonight but still end up with Bayern Munich in the round of 16, how bitter would that be

Bayern Munich lost 3-2 at FC Rostov earlier on Wednesday.