Result: PSG 2-0 Man City - Gueye and Messi
Messi's first goal since joining PSG
Result: Porto 1-5 Liverpool - Salah (2), Mane & Firmino (2)
Reds on maximum points after first two games
Moldovan champions Sheriff Tiraspol win 2-1 at Real Madrid - one of biggest shocks of Champions League era
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Porto 0-1 Liverpool
OOFT!
It's rolled to Jordan Henderson on the free-kick and he absolutely thumps it towards the top right corner.
It's a decent enough height for the keeper and he tips it over the bar. That was really fizzing! Great strike.
PSG 1-0 Man City
Lucky, lucky boy.
Just a yellow card for Kevin de Bruyne having nearly snapped Idrissa Gueye's leg in half.
Image source, Getty ImagesPSG 1-0 Man City
Michael Brown
Former Man City midfielder on BBC Radio 5 Live
It is a bad one - the VAR officials have got a long time to look at this and whether the referee will make a choice to go to the monitor I'm not sure. The PSG players are putting that pressure on, when you see one like that that's angled high, it doesn't look great.
Image source, Getty ImagesPorto 0-1 Liverpool
Sadio Mane is fouled right on the edge of the Porto box. Decent free-kick area.
PSG 1-0 Man City
Idrissa Gueye is gingerly back onto his feet after taking attention from the physio.
It looks like he will be OK to continue.
But will Kevin de Bruyne play on?
PSG 1-0 Man City
Still no action from the referee while Idrissa Gueye is on the ground.
Had a look at a few replays now and it gets worse each time from Kevin de Bruyne.
The Belgian was late to the ball and caught the PSG midfielder on his shin with his studs.
Borussia Dortmund 1-0 Sporting Lisbon
Donyell Malen with a fine finish to put hosts Borussia Dortmund ahead against Sporting Lisbon. He runs onto a wonderfully threaded pass from Jude Bellingham and squeezes it home.
PSG 1-0 Man City
Michael Brown
Former Man City midfielder on BBC Radio 5 Live
That was a near thing - brilliant run from Kylian Mbappe down the left and then quick feet on the short corner, Marquinhos was just diving as the ball fizzes across. Great play from PSG.
PSG 1-0 Man City
Kevin de Bruyne will be lucky if he stays on here.
A horrible challenge on Idrissa Gueye, high on the midfielder's leg and VAR is having a look.
Porto 0-1 Liverpool
This is why Liverpool need to make sure.
Porto have a rare chance as it falls for Luis Diaz in the box. He has time to pick his spot but completely scuffs it as he tries to curl it into the far corner.
Alisson picks it up slowly.
PSG 1-0 Man City
PSG break in a flash and you don't want to give Kylian Mbappe time in your own half.
The Frenchman feeds Ander Herrera on the edge of the box and the former Manchester United man's shot is pushed over the bar by Ederson.
Image source, Getty ImagesPSG 1-0 Man City
City are having a bit of joy in that final third.
Riyad Mahrez slips a pass in behind the PSG defence and Kevin de Bruyne latches on to it with a first-time strike but it is straight at Gianluigi Donnarumma.
Porto 0-1 Liverpool
Liverpool should be comfortably ahead. They are getting chances - a lot of them falling to Diogo Jota - but the final touch or final pass hasn't quite been right.
The latest pass is from Curtis Jones but Mohamed Salah is offside and lets it run out for a throw-in.
PSG 1-0 Man City
Riyad Mahrez lofting a high ball into the area in front of a 6ft 5in goalkeeper.
Not ideal is it?
PSG then break after Gianluigi Donnarumma's throw-out and Neymar lashes over the crossbar.
Porto 0-1 Liverpool
Diogo Jota switches it over to the right where James Milner is backing up Mohamed Salah.
The right-back drills it in low but it takes a deflection and falls comfortably for the keeper.
PSG 1-0 Man City
Michael Brown
Former Man City midfielder on BBC Radio 5 Live
Jack Grealish is getting in one-on-one areas - I think he's got to push Achraf Hakimi back into the box and draw the challenge in, that's where Grealish is good.
Image source, Getty ImagesPSG 1-0 Man City
Raheem Sterling is in behind and you think he is going to lay it on a plate for Kevin de Bruyne to tuck in, but it's that man Marco Verratti in again to intercept.
Image source, Getty ImagesPorto 0-1 Liverpool
Porto are being carved open. Sadio Mane cuts inside off the left and tees up Jordan Henderson. He hits it from outside the box and it bounces off Mane in an offside position.
Curtis Jones hits one at the keeper a few seconds later.
AC Milan 1-0 Atletico Madrid
This seems a bit harsh so early in the game, but Franck Kessie is sent off for a second bookable offence.
He is undoubtedly a touch late with his challenge on Marcos Llorente, but I've seen stern warnings given for more. Referee Cuneyt Cakır is not messing about.
PSG 1-0 Man City
It's all City now at Parc des Princes, they've reacted well to falling behind.
Jack Grealish lays the ball off for Joao Cancelo to smash a thunderous, first-time strike from the angle but Gianluigi Donnarumma shows assured handling to claim low to his left.