Kyle Walker uses his pace to beat a man on the right but his cross takes a flick off a defender and floats on to the roof of the net.

From the corner, a header is sent on target but straight at home keeper Janis Blaswich.

Matthew Upson
Former England defender on BBC Radio 5 Live

It's good discipline from Leipzig. They are well organised. Lots of hand gestures from them and good defending. The communication has got to be spot on from them.

First chance of the game and it's a big one. Inter captain Lautaro Martinez is unmarked six yards out but he heads over from Federico Dimarco's cross.

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City continue to patiently probe away in the home half. All it takes, though, is a slightly fluffed touch or misplaced pass and Leipzig are on them in a flash.

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City's defensive line is a good one. It catches Andre Silva offside as he looks to break in behind.

Matthew Upson
Former England defender on BBC Radio 5 Live

I don't know what you can do about the quality of the passing from Manchester City. It's almost like unlocking a door that's closed.

They're just moving Leipzig all over the pitch in confusing positions too.

They've had possession of the ball for a long passage now. It's amazing to watch.

No shot in anger here yet either. City the side looking more likely to fashion something.

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Twas an end-to-end start at the San Siro but it's calmed down a bit now. No chances yet.

Leipzig are packing that central area of the pitch, denying City any space in which to operate. Those two wide midfielders are tucking in and hunting the ball.

Kyle Walker is staying very wide on this near right side, giving City the option.

Waste of a good opening!

City charge down the left through Jack Grealish, but after he finds Riyad Mahrez in the box, the Algerian's touch lets him down and the home side can clear.

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Matthew Upson
Former England defender on BBC Radio 5 Live

I think this is a brilliant tie. Just the styles, how they match up and how they're going to go about it.

It's all about focus for the City defence. This Leipzig side need no second invitation to apply pressure.

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There's the first sight of that famous Red Bull high press. In nips Emil Forsberg to win the ball, but he can't make anything of possession.

Soon after, Andre Silva is released but his low ball into the middle is cut out and cleared.

Matthew Upson
Former England defender on BBC Radio 5 Live

It's no secret as to how they play at home, how they are going to go about this game.

City are just stroking it about and keeping the ball and Leipzig are happy to let that happen, draw teams onto them and break brilliantly.

Lots of City possession early on. Ruben Dias finds Ilkay Gundogan, but his ball through the home defence is just a touch too heavy for Erling Haaland to gather.

Marco Rose will have instilled into his defence just how important it is to deny Haaland the ball near the box.

In Josko Gvardiol they have a centre-back who knows how to read a game.

Porto captain Pepe is the third oldest outfield player to start a Champions League knockout game after Ryan Giggs and Alessandro Costacurta, who were both 40.

Pepe, who turns 40 on Sunday, will overtake Costacurta into second place if he plays the second leg.

City are scampering forward straight from the kick-off, getting Kyle Walker into an advanced position for a low cross that is cut out before it can get to Erling Haaland.

Two more Champions League last-16 first legs to complete the set for this season. We are getting under way in both.

Events in Leipzig take the main focus, but there'll be updates on both games.

Strap in.

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