Chris Sutton
Former Chelsea striker on BBC Radio 5 Live

You can never write anybody off. Manchester City have had big chances, golden chances, they've missed them.

The chance Red Star did get was tucked away brilliantly. They've got something to hold on to now.

They've defended deep and they've defended resiliently. Shock on!

Celtic currently trail Feyenoord 1-0 after Calvin Stengs scored shortly before the break in the Netherlands.

You can follow live coverage of that one here.

PSS have made all the running at Parc des Princes but are still level at the interval.

They wanted a penalty when the ball seemed to strike Nicklas Sule on the hand from a corner, but after a VAR check it was not given.

The most one-sided half you could wish to see, but then Manchester City, who had dominated, fall a goal behind.

City have created chance after chance after chance. Erling Haaland has hit the bar and goalkeeper Omri Glazer has made some great saves to keep the hosts out.

Then, with their first look at goal, a ball is played through the City defence by Mirko Ivanic, Osman Bukari races on to hit and hits a lovely finish past Ederson.

The goal was originally ruled out for offside, but then given and, somehow, the European champions go in at the break a goal behind.

Barcelona are pinging the ball about at will as the half-time whistle is blown at the Olympic Stadium.

Xavi's men in total control.

Chris Sutton
Former Chelsea striker on BBC Radio 5 Live

For all those people who wrote Red Star off, I'll tell you what...

A brilliant finish. The European Champions stunned. The finish is brilliant, Osman Bukari lifts it and bends it over him. Red Star have stunned the Etihad and shocked Manchester City. It's not been the first half Man City will have wanted.

Simon Stone
BBC Sport at the Etihad Stadium

It is 22-1 to Manchester City in terms of shots.

Funny old game football.

Chris Sutton
Former Chelsea striker on BBC Radio 5 Live

It was well-taken. I thought initially he did look offside.... I think he's on!

This could be given you know.

Osman Bukari races through the middle of the Manchester City defence and slots it past Ederson.

The assistant's flag is immediately raised. But we go to VAR.

Chris Sutton
Former Chelsea striker on BBC Radio 5 Live

I'm not a medical expert but that's a big call if he's taking off Bernardo Silva. I really don't know. That's a big surprise.

There must be something wrong with him. You don't take Bernardo Silva off.

Is Doku as effective as Bernardo Silva in the final third? Has he been throughout his career?

A change just before half-time for Manchester City as Jeremy Doku, who scored his first goal for the club in the 3-1 win at West Ham on Saturday, comes on and Bernardo Silva is off.

Chris Sutton
Former Chelsea striker on BBC Radio 5 Live

When you say golden it can't get any easier. What a save from Glazer but he shouldn't have been allowed to save it.

Foden, six yards out, heads the ball down like he should do. He shouldn't be hitting the goalkeeper.

This should be 1-0. Phil Foden is free, six yards out and meets a cross from the left from Sergio Gomez. But Omri Glazer is having the game of his life and gets to the header and keeps it out.

Simon Stone
BBC Sport at the Etihad Stadium

Jeremy Doku is doing a pretty extensive warm-up to my left.

I wouldn't be surprised to see him come on for the second half.

Pep Guardiola can't be that unhappy with the performance, Manchester City only need a goal. They are completely dominating the game.

Manchester City have had 18 shots - their most in the first half of a Champions League game without scoring.

Omri Glazer is having a blinder so far for Red Star, this time he flings himself to dive to his right and parry a dipping effort from Julian Alvarez. Somehow, it's 0-0. Surely not for much longer.

Chris Sutton
Former Chelsea striker on BBC Radio 5 Live

Red Star have thrown the bodies in front of the ball and are hanging on in there. If they could get to half-time level then it would be a major triumph for them.

Sergio Gomez runs on to it and hits a lovely volley from 15 yards out, but top-drawer defending from Srdan Mijailovic as he threw himself in front of the ball to get a potential goal-saving block in. Top-class defending.