Where's the marking, Barcelona !? 

Barcelona are almost caught out as no-one closes down Gonzalo Higuain on the edge of the area and he fires in a slow effort towards the corner, but Marc-Andre ter Stegen saves.

Barcelona are pressing hard now, but shots from distance are still all they can muster as Andres Iniesta sends an effort just over.

Neymar shoots from distance but it is a shot fired in frustration as he does not connect well at all, sending it sailing over.

Image source, AFP

Barcelona really are not travelling well this season. Lose this game and it would be three defeats from their last four away games in the Champions League. They've also lost two of their last three on the road in La Liga, which has put Real Madrid in control of the title race. 

Chance straight from the restart for Barcelona as Leonardo Bonucci hooks the ball from the feet of Luis Suarez, it runs free to Lionel Messi but he is quickly put under pressure and strokes his shot wide of the post.

Image source, Getty Images

Back under way.

Tactical switch by Barcelona boss Luis Enrique for the second half. Andre Gomes is on for Jeremy Mathieu. 

Gomes goes into midfield with Samuel Umtiti moving to left back and Javier Mascherano into centra defence.

Paulo Dybala has not had a lot of touches of the ball, but he's made the most of it when he has. Two touches inside the area = two goals...

Image source, .

... Lionel Messi, meanwhile, has been kept at arm's length by Juventus. He has seen plenty of the ball outside the box but none inside it.

Image source, .

Image source, Reuters

In case you missed tonight's news, Borussia Dortmund's Champions League quarter-final with Monaco has been postponed after the Dortmund team bus was damaged by an explosion.

The German team confirmed that defender Marc Bartra was injured in an incident near their hotel but said there was "no danger inside the stadium".

The match will now be played at Dortmund's Westfalenstadion at 17:45 BST on Wednesday. Police confirmed there had been three explosions in the area of the team bus.

Read more here.

Pat Nevin
Ex-Chelsea winger on BBC Radio 5 live

Juventus have been tactically astute. They got the goals when they wanted and have hit on the break brilliantly. Everyone is giving it for the team.

I think Juventus need another goal and I expect they will go for it.

Kaushik Gorai‏: I don't understand these next Messi, Next Ronaldo and all this. Why compare? One generation ages another emerges. Don't Compare.

Gazarelda:‏ Love the way the talk is of this 'new wonderkid' Dybala bursting onto the scene, he's only been ripping up defences for 3 years.

Pat Nevin
Ex-Chelsea winger on BBC Radio 5 live

Higuain had no right to get that chance before the break on target. It flicks up off his chest to hit. He hits it with pace, just in front of Ter Stegen, who palmed it out. It could so easily have fallen to another Juventus player.

Barcelona are not often asked questions but at this level they are and at the moment they don't have the answers.

And that's half time. Juventus in control.

As much as Barcelona's attack looks capable of scoring, their questionable defence looks capable of conceding.

Alex Sandro shrugs off his marker out wide before cutting in a low ball for an unmarked Gonzalo Higuain. His shot is awkward for Marc-Andre ter Stergen, who pushes it back into the dangerzone and Jeremy Mathieu hooks away.

JavelBleach:#Juve, external are just playing too quickly for #Barca, external, who can't keep up & try to slow the game down with every possession.

Harrison Short: Very clever niggly fouls from Juve. Completely disrupts any chance of Barca getting into a rhythm. 

Stavros Makrozachopo: One thing's for sure.If Juventus win this 4-0 ,they will qualify 100%, their defence is a million miles better than PSG'S  

Jeremy Mathieu pings another cross in from the left and finds Luis Suarez, who stoops to flick a header towards goal. The ball deflects off Giorgio Chiellini, could go anywhere, but fortunately for Juventus it goes behind for a corner.

Image source, AFP

Jeremy Matheiu is operating as more of a winger than a wingback and it's leaving Barcelona with a huge hole down their left side. The visitors look capable of scoring, but they need to be wary of getting hit by another counter.

Josh Earle: Been watching him for a few years now, this Dybala kid is special  

Pat Nevin
Ex-Chelsea winger on BBC Radio 5 live

It is dream territory for Juventus. They will have wanted an early goal but they have two. They can now sit back and hit on the break.

Image source, AFP