The energy and the bite of Arturo Vidal is replaced by the silk of Arthur in the Barcelona midfield.

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A certain sub may fare well in this.

You can rate the players here.

Where's the drama coming from next? Extra time? Penalties? We might never leave the office.

Alan Shearer
Former England captain on BBC Radio 5 Live

It's so tight. This could still go either way with the ability Barcelona have going forward.

Craig duke lockerbie:Wow.... just wow.... not even a supporter of liverpool, but what a team! What a phenomenal season!

Dom, London:What we're seeing here is that when it comes down to it, a player will never beat a team

Niyi Martins: the next goal decides this game.

Image source, Getty Images

The lull after the storm? The foot has come off the gas a bit, unsurprisingly really. The home crowd will start to get nervous now as the reality hits home. The final really is on the horizon after a week filed away in dreamland.

Still, incredibly, 20 minutes left. Room for more twists and turns just yet. Barcelona are having a spell of control, they are finding their feet a touch. James Milner gets forwards from left-back though and puts in a decent cross.

A mischeivious tweeter points out that had Luis Suarez not kicked Andy Robertson, Gini Wijnaldum wouldn't have come on at half-time...

Probably.

Image source, Reuters

Alan Shearer
Former England captain on BBC Radio 5 Live

Well-worked by Barcelona. Another decent save by Alisson.

We're sucking diesel, alright. Lionel Messi hits the wall though!

A young boy in the crowd can barely watch. Drink it in son!

From the corner, Messi gets the ball back and has a shot saved at the near post by Alisson.

James Sale: Who needs Line of Duty when you have this drama

Lionel Messi has been starved of the ball, of influence, but there's still nearly half an hour left and he can ruin you life in a second. A driving run down the middle, Joel Matip fouls him and is booked.

A free-kick 30-ish yards out. More or less a penalty for the maestro...

Steven Gerrard watches on from the stands. Presumably scouting for Rangers.

Best Lawro prediction on our site ever?

Mark Lawrenson
Ex-Liverpool defender

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If Liverpool make the Champions League final, it would be the Reds' greatest result ever.

They have obviously had some big ones before and I have been there to play in or watch most of them, but because of the way Barcelona are, and particularly because of the genius of Lionel Messi, if Jurgen Klopp's side get through this tie then this would be a recovery like nothing else I have seen before.

Of course people will read that and ask "what about Istanbul?" - when Liverpool famously fought back from being 3-0 down at half-time against AC Milan to win the 2005 Champions League final, but that was slightly different.

That performance was absolutely brilliant, but it basically was just down to them gambling everything to get back in the game and throwing everyone forward.

Do that again this time, and the tie will probably be over within a matter of minutes.

Here's what Lawro said yesterday:

Harrison Short: I am the opposite of a Liverpool fan, but this is absolutely incredible. Nothing like the Champions League

Greg, Leeds: Not even a Liverpool supporter, but hearing Anfield in full voice still gives me goosebumps

Hugo Viner: Never seen anything like it. Could be a bigger night than Istanbul!

Image source, EPA

Alan Shearer
Former England captain on BBC Radio 5 Live

It's like Barcelona don't know how to defend crosses into the box. Barcelona are rocking.

Twelve months ago, Barcelona threw away a three-goal lead to go out in Europe. History repeating itself?

There's a long way to go but the momentum is pure red at the moment. Barcelona look done in.

Alan Shearer
Former England captain on BBC Radio 5 Live

This place is brilliant now. What an atmosphere.