Chelsea yet to have a shot on target in the opening 43 minutes. A quiet start to life under Graham Potter.

Simon Stone
BBC Sport at the Etihad Stadium

It is one of those nights where Pep Guardiola is prowling.

He wanders to the edge of his technical area, has a watch, then walks to the other side, watches again, then goes to sit down.

I suspect he has a few points to get across at half-time.

More VAR controversy at Allianz Stadium, following the drama seen at the end of Juventus v Salernitana at the weekend.

Here, Benfica are awarded a penalty after a review which Joao Mario puts away.

Raheem Sterling has a close-range volley blocked, RB Salzburg can't clear it and Marc Cucurella's pullback finds Mason Mount free in a central position on the edge of the penalty area.

He cuts across the ball, but sees his strike arch away from goal and go narrowly wide. At the other end, Benjamin Sesko tries his luck from 25 yards out and Kepa Arrizabalaga has to scamper across his goalline and fling himself to his right to get down and stop it from creeping inside the post.

Dion Dublin
Former England striker on BBC Radio 5 Live

Again, it’s a last-ditch challenge from a City player. They’ve just got to switch on a little bit more City, there’s a lot of quality in this Dortmund side.

Brilliant play by Jude Bellingham on the edge of his own box to break up a City move. Maybe 30 seconds later he has the ball in City's penalty area although Rodri takes it off him. Box-to-box midfielder.

Normal service resumed.

Kylian Mbappe and Lionel Messi combine, the former beating his man on the left and firing over a low cross which deflects off a defender, for the latter to tuck home from eight yards.

A measure of relief for PSG.

Kevin de Bruyne's cross is *just* behind Erling Haaland, who couldn't make proper contact with it. Can they create a proper chance?

Image source, Getty Images

We have a slight delay with a communications issue among the officials so it gives Graham Potter the chance to give his players some pitchside instructions and let them know what they need to improve.

Dion Dublin
Former England striker on BBC Radio 5 Live

Even though Man City have had over 60% possession, the best half chances have come for Dortmund if they could have picked the right pass.

There have been five shots in this game. Three have been by Jack Grealish. All blocked.

Does Jack Grealish know he has team-mates?

Erling Haaland sprays the ball out to Grealish on the left. The England midfielder cuts inside and has another shot blocked.

Haaland had continued the run into the box...

Jack Grealish cuts inside and has a shot blocked by his fellow Brummie Jude Bellingham. Corner to City.

Kevin de Bruyne's corner is headed away by Anthony Modeste though.

England manager Gareth Southgate is at Stamford Bridge and I wonder what he makes of Raheem Sterling being used as a left-wing back?

Mason Mount and Reece James are the other Englishmen currently on the pitch, with Southgate naming his squad tomorrow for the Nations League matches against Italy and Germany later this month.

Dortmund midfielder Giovanni Reyna takes the corner and curls it out of play on the far side.

The USA international was born in Sunderland when his dad Claudio played there. Claudio also played for City.

Corner to Dortmund. Like Phil Mc said, not a whole load going on.

Phil McNulty
BBC Sport chief football writer at Etihad Stadium

Subdued atmosphere. Subdued game. Manchester City enjoying plenty of possession but Borussia Dortmund comfortable. Low-key doesn't cover it.

Image source, Getty Images

What a story this could be!

PSG lose the ball playing out from the back, a deep cross is swung in from the right and former QPR man Tjaronn Chery nips in front of his marker to turn the ball home.

Haifa have lost their last seven Champions League group stage matches in a row. They lead PSG here.

City left-back Joao Cancelo lines one up from way downtown, maybe 30 yards, and it sails miles over. Not the best effort.

Pierre-Emerick Aubameyang tries to get a shot away for Chelsea but an excellent piece of last-ditch defending from Strahinja Pavlovic who throws himself at the ball to get the block in.