Juventus have a rare trip forward and Adrien Rabiot gets a simple pass wrong on the counter-attack.

Robert Lewandowski has scored in six successive Champions League appearances for the second time, after a run of nine from September 2019 to August 2020.

He has scored 76 Champions League goals, including 35 goals in his last 34 games.

Bright start from Chelsea against Italy's 10th best team. They've had all the shots and 68.3% of the ball so far.

Robert Lewandowski sends the keeper the wrong way from the spot and Bayern Munich lead Dynamo Kyiv 1-0.

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Clinton Morrison
Former Republic of Ireland striker on BBC Radio 5 Live

He never believed in himself there, Danjuma. It’s good pace from him, but it’s a poor finish and a comfortable save for David de Gea.

That’s something Man United will have to be aware of.

Quite a few nervy noises from the stands at Old Trafford. The away side have come here to cause bother.

Handball in the box, penalty to Bayern.

Big save!

Villarreal are a real threat. They are patient, taking their time to work the ball to Arnaut Danjuma again. This time he tries to go across David de Gea, who dives to push the ball behind.

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Robert Lewandowski has his first chance of the game but his header is tipped over the bar by the keeper.

Not much action in Germany so far, Viktor Tsygankov has just shot wide for the visitors.

Perfect tackle from Chelsea midfielder Mateo Kovacic to nick the ball off Federico Bernardeschi in the box. If he mistimed that it's a definite penalty but he gets it spot-on.

Clear header from you know who!

Cristiano Ronaldo rises in the box to meet a corner but heads over.

This is the big, big danger!

All it takes is a loss of possession, a lapse in concentration. Paul Pogba is robbed and after one pass Arnaut Danjuma is clear. He is on an angle but hits the target, only to be denied by David de Gea.

A huge warning.

Chelsea go close from a well-worked corner. Marcos Alonso takes it and his low pass into the box finds Romelu Lukaku in space.

Lukaku hits a first-time shot but it's straight at Wojciech Szczesny.

It is all United at Old Trafford. Villarreal happy to stay compact and prevent the home side making inroads through their ludicrously talented forward line. Jadon Sancho is fed out wide but his cross deflects to home keeper Geronimo Rulli.

Great atmosphere so far at the Allianz Stadium. Crazy to think Juve almost didn't even qualify for the Champions League this season - they just crept in on the final day.

Shamoon Hafez
BBC Sport at Old Trafford

Paul Pogba is sporting a new haircut.

Hopefully certain pundits aren't watching the game...

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We've had barely three minutes at Benfica and the home side are already ahead against Barcelona.

Darwin Nunez breaks clear, cuts inside with the Barca defence trailing and finishes low inside the near post.

The worst possible start for a side on its backside.

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Clinton Morrison
Former Republic of Ireland striker on BBC Radio 5 Live

I think we’ll get goals. It’s a huge game for Manchester United – it’s a must-win game.

Their next two group games are even more difficult.

First chance is to Chelsea but Mateo Kovacic scuffs his 25-yard shot. Cesar Azpilicueta had crossed the ball over Romelu Lukaku's head seconds earlier.