Hugo Ekitike picks out Mo Salah at the far post but he heads agonisingly wide.

It would've been chalked off anyway.

Igor Paixao uses his pace to get in behind but Liverpool get men back to snuff the attack out.

They're defending well so far.

More Chelsea changes as they try to find a winning goal. Alejandro Garnacho and Liam Delap are replaced by Jamie Gittens and João Pedro.

Pat Nevin
Former Chelsea winger on BBC Radio 5 Live at the St James' Park

As soon as Harvey Barnes got the ball there, he only had one thing on his mind. Barnes drives through that defence, and he went past them as if they weren't there. He was not going to miss that, and this whole stadium can now breathe with the result secured.

Here comes the cavalry. Geoffrey Kondogbia, Hamed Traore and Amine Gouiri make way for Pierre-Emerick Aubameyang, Igor Paixao and Bilal Nadir.

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Less than three minutes after coming off the bench, Dani Olmo puts Barcelona back in front!

It's a brilliant hit from the substitute, thumping the ball into the top corner from the edge of the box.

Have Slavia Prague come it in them to come back again?

Timothy Weah joins the Marseille attack. He looks for the far post, but it takes a nick off Virgil van Dijk and goes behind for a corner.

They're pushing.

Another Chelsea chance and another Jay Gorter save as he keeps out a dipping Moisés Caicedo effort.

Just when it looked as though Bayern were cruising, they find themselves down to 10 men.

Centre-back Kim Min-Jae is shown a second yellow card and Union have got the tiniest glimmer of hope.

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Alexis Mac Allister breaks free of the Marseille midfield and slips it left to Hugo Ekitike. He strikes first time and it's inches over.

Liverpool need to make these chances count.

PSV make a double change as we pass the hour mark. Ivan Perisic and Dennis Man are replaced by Esmir Bajraktarevic and Couhaib Driouech on.

Florian Wirtz hooks one over the box for Jeremie Frimpong. The early switch is the right idea but he's overhit it ever so slightly.

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Two goals in quick succession for Juventus.

It's a goal made in North America as American Weston McKennie plays a one-two with Canada's Jonathan David before slotting the ball into the bottom corner.

A third Champions League goal of the season for McKennie.

Charlie Adam
Former Liverpool midfielder on BBC Radio 5 Sports Extra

I worry for Liverpool when they're open and they are flooding people forward and they leave two v two at times. As soon as Liverpool counter attack, Greenwood's peeling out to the right and waiting for the pass to look to drive forward.

A couple of changes for the visitors as Brazilian pair Jaja and Anderson Silva are replaced by Landry Dimata and Domingos Quina.

Hugo Ekitike finds the run of Milos Kerkez and he powers up the left. He goes on the outside to Florian Wirtz. He shapes to go to the far post but drags it to the near but Geronimo Rulli reacts well.

Pafos are back sitting deep again. I don't think they've wandered past the halfway line yet in this half.

Aadam Patel
Football Reporter in Marseille

This game has opened up after the break. It's end to end. Marseille are properly going for it and are full of energy but that's creating plenty more space for Liverpool to attack into whenever they get the ball.

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A blow for Barcelona as Pedri is forced off with an injury. The talented midfielder hobbles off holding his hamstring and is replaced by Dani Olmo.

Marcus Rashford is also coming on with Barca in search of a third goal.