Big, big save from home keeper Janis Blaswich!

City drive forward down the left before the ball is pulled back for Ilkay Gundogan. He goes for the far corner but is prevented from finding it by the diving Blaswich.

After utterly dominating the first 45 minutes, City are now the team struggling to make passes stick, the ones nervously prodding balls short of team-mates.

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Inter bring on Marcelo Brozovic for Premier League legend Henrikh Mkhitaryan.

Matthew Upson
Former England defender on BBC Radio 5 Live

It has to be said, it has been coming. They've been pressing and pressing and it's just a chipped ball into the box, but how well does Gvardiol get up?

It's all about his desire to want to head that ball. He's about five yards out and powers the ball into the back of the net.

Brilliant set-piece, good ball into the box, and a brilliant header from Gvardiol.

The home side, with the bit between their teeth, will fancy winning this leg now.

They'll know any lead they can take to the Etihad will be huge.

Only Manchester United (23), AC Milan (22) and Barcelona (20) have played more goalless draws in the Champions League than Porto (19, before today).

Inter go close to keeping Porto on 19 as Romelu Lukaku chests the ball down to Nicolo Barella, who volleys over.

Twenty minutes to go.

City lead but Leipzig are showing their teeth.

Erling Haaland hasn't seen a lot of the ball, certainly not this half.

But the City striker sees it now and burns his way past Josko Gvardiol. He gets into the box but pulls his shot across goal and wide.

Haaland's first touch in the Leipzig box.

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Matthew Upson
Former England defender on BBC Radio 5 Live

Well if you could bring on any player at this stage of the game, you can't think of many better than him in terms of form and impact on his game at the moment.

He really runs at defenders, and has picked up that position Forsberg was playing in.

Oh, City are living on the edge!

Leipzig carve through the middle and almost feed in Timo Werner. It takes a well-timed, last-ditch intervention from Kyle Walker to stop the ball reaching him.

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Emil Forsberg makes way for Christopher Nkunku.

He scored a hat-trick against City last season. What can he do for his side tonight?

Christopher Nkunku is stripped and ready for action. He'll give City something to really worry about.

Matthew Upson
Former England defender on BBC Radio 5 Live

He's got to take that with his left foot. He's chopped it back on to his right and tried to clip it over Ederson but he could have put his foot through it with his left.

Leipzig carving out another really good opportunity to score.

Suddenly, this is all Leipzig. They have flipped the momentum.

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Good save from Ederson!

Andre Silva turns Manuel Akanji inside out to get in on goal. The angle is tight and he goes for a chip, only to be denied by a very sharp City keeper, off his line and using a big hand to block.

Benjamin Henrichs has made a big difference on the right. His cross floats over a few heads in the box after he is again found.

He'll still be cursing himself for that miss, mind.

Timo Werner is starting to have an impact. Using his pace on the left.

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One thing that might work in City's favour here... if Leipzig are going to be more ambitious, they may have more room to work in when they do go forward.

Inter Milan bring on Chelsea loanee Romelu Lukaku for Edin Dzeko. Robin Gosens replaces Federico Dimarco too.

The changes come seconds after Andre Onana's double save kept them level.