Pat Nevin
BBC Radio 5 live at Estadio do Dragao

Firmino deserves a goal, he’s been involved in absolutely everything. His two mates have popped goals in Salah and Mane, but there’s a man that deserves a goal more than anyone.

PSG's all-time record goalscorer Edinson Cavani comes off... for right-back Thomas Meunier.

The substitute can play further forward to be fair, but it's Dani Alves who actually moves up the pitch.

Cristiano Ronaldo takes the free-kick, and shoots - obviously - from 35 yards - but slams it into the wall. I don't even want to see his free-kick conversion rates.

Subs o'clock now.

Real midfielder Luka Modric darts past Adrien Rabiot, who brings him down. A goal and a yellow card for the Parisian.

Trent Alexander-Arnold's cross is just too far for Roberto Firmino. Jurgen Klopp looks disappointed. He should be a happy man right now.

Dan E: I know this sounds ludicrous, but Sadio Mane is horribly out-of-form at the moment. It's a credit to his endeavour and work rate that he's still contributing something every game.

Paul W: Liverpool could play Alberto Moreno in the second leg and I'd feel confident against this Porto side.

Andre: Those mentioning the Sevilla game have forgotten we're missing an important piece responsible for that: Alberto Moreno.

Pat Nevin
BBC Radio 5 live at Estadio do Dragao

I said at the start of the year this could be the season that English clubs come back and are dominant in the Champions League. Not necessarily win it, but have maybe two sides make the semi-finals.

Neymar goes past Casemiro and goes down under minimal contact. If he gets booked for this, he's sent off. But he avoids a yellow.

Let's get ready for all kinds of conspiracy theories if he scores the winner.

Casemiro was doing the imaginary yellow card thing so by the rules they should both be booked.

Henock: There is no way that this Real Madrid team wins the Champions League. They looked tired. No real fight whatsoever.

Owen: Very good performance from Liverpool but they won't win the Champions League with that defence, or their poor keepers.

Amar:People need to stop commenting on Liverpool and concentrate on the Champions Leagues exploits of their own team. If your team is in the Champions League, that is.

I'd better stop doing this live text then since I don't support a Champions League team...

Isco slips in Cristiano Ronaldo, but the Portugal star is miles offside.

Liverpool just passing the ball round with ease. Is there even a need for a second leg?

Isco finds Karim Benzema down the Real Madrid left and his cross goes straight out for a goal-kick.

Whistles from the Bernabeu crowd, who don't have much time for him or his lack of goals this season - six in total.

Pat Nevin
BBC Radio 5 live at Estadio do Dragao

If you put that many players forward like Porto did, we know what Liverpool can do on the counter attack. Once they got the ball back and broke you just knew they were going to make the right pass.

Now Porto need to make a decision - 'do we keep going, or just try not to make this an embarrassment?'

Chance for PSG. Good play from Dani Alves to stop the ball going past the byeline. His cross finds goalscorer Adrien Rabiot, whose shot hits the arm of Sergio Ramos. The Real captain's arms were down by his side, nothing he could have done there. Didn't stop Alves appealing though.

Game management from Liverpool. Nothing to report from this game. Porto are attacking a bit but don't look like they're on the verge of mounting a comeback.

Markyb: Liverpool fans - thank God Swansea & WBA are not in the Champions League. Reality check.

John: After half a decade in the wilderness English clubs are the big boys in Europe once again. Sevilla and Barca up next.. and they will be getting nervous.

Big chance for PSG wonderkid Kylian Mbappe as he is picked out in space in the box by Neymar, but Keylor Navas shows strong wrists to keep his low shot out of the net.

Image source, AFP

Pat Nevin
BBC Radio 5 live at Estadio do Dragao

It's really disappointing to see Otavio go off. I know Porto needed to change something, but how you can actually point the finger at him I don't know?

I know he's young and Corona is an attacking player too, but he always looked the most dangerous.

Isco crosses from the right but Cristiano Ronaldo can't get his head onto it.

He's scored 20 goals in his last 12 Champions League appearances - so I think we'll have to let him off for that.