Barcelona on top. They've largely dominated that half and crucially have the lead.

Erik ten Hag needs to have a big rethink.

Peter Schmeichel
Former Manchester United goalkeeper on BBC Radio 5 Live

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Barcelona are now in full control of this game. But Erik ten Hag has been in this situation before and he has always come up with something that people haven't seen before, so I am interested to see what he does.

Oh, it could so, so easily be 2-0!

Manchester United dice with death playing around ay the back, with David de Gea gifting the ball to Barca.

They fashion an opening for Sergi Roberto and it takes a superb sliding block from Casemiro to deny them. The Brazilian is also there to stop Franck Kessie following up, although he knows less about that one.

That's the get out jail free card played.

Barca take the corner short and waste it, with Raphinha's wayward pass letting the home side off the hook.

Frenkie de Jong chips the ball in and Casemiro flicks the ball behind for a corner.

Barca pressure tells.

Manchester United can't get out as the away side look for that half a yard they need.

Wout Weghorst is back and he gives away a free-kick near the edge of the area. It is wide left but one they can whip in.

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Raphinha goes for glory but gets it wrong.

He feeds the ball into Robert Lewandowski on the edge of the box and immediately gets it back before lashing a shot well off target.

There's no lack of confidence in the Brazilian.

Peter Schmeichel
Former Manchester United goalkeeper on BBC Radio 5 Live

Barcelona look dangerous every time they go forward. It is very, very important for Manchester United to not go into half-time two goals behind.

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Just a few moans and groans now from the home fans. They can see their side are struggling. Barca are largely in control.

Marcus Rashford's first involvement for a while ends in frustration.

He finally has some room to run into but after cutting inside he lacks options and is tackled.

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Roof of the net!

For a moment, Fred has Marc-Ander ter Stegen worried with his volleyed ball into the middle. It floats towards goal but clears the bar and lands on the top of the netting.

Bit of a waste really.

Manchester United try to launch a rapid attack and it almost pays off.

Frenkie de Jong is the fly in the ointment, though, tracking back well to ensure Bruno Fernandes can't gather possession on the right.

Well how about this for a surprising scoreline. Union Berlin are 1-0 up in Germany against European heavyweights Ajax.

Robin Knoche has put the hosts ahead from the penalty spot and that means his side are heading through as it stands, 1-0 on aggregate.

Elsewhere, Bayer Leverkusen beat Monaco on penalties to book their spot in the round of 16.

After two chaotic legs which finished 5-5 on aggregate, neither side could find a winner in extra time and Leverkusen bagged all five of their penalties while Eliot Matazo missed his spot-kick for the French side.

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Simon Stone
BBC Sport at Old Trafford

When the ball broke just then, it was rolling perfectly for a thunderous 50-50 between Frenkie de Jong and Lisandro Martinez on the halfway line.

De Jong seemed to notice it too judging by the way he eased off and let the Argentina defender have the ball.

Probably a wise decision.

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Oh, almost!

Casemiro tries to flick a ball over the top of the Barca defence for Jadon Sancho but Sergio Busquets spots the danger and hooks the ball away.

Lisandro Martinez needs to be alert again.

He comes hurtling over to stop Frenkie de Jong running clear.

Peter Schmeichel
Former Manchester United goalkeeper on BBC Radio 5 Live

The Manchester United players need to settle down, there is too much arguing with the official going on when Erik ten Hag has already spoken to him.

They are so preoccupied they aren't aware when the free kick is taken and it is far too easy for Kessie to get in behind.

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Marcus Rashford is not really in this right now.

Lisandro Martinez tries to change that but his big switch simply floats into the grasp of Marc-Andre ter Stegen.

Lisandro Martinez does his job this time! He has to!

He initially tries to play offside but it allows Franck Kessie to get away. The United defender gets back quickly, though, to muscle his way back on to the ball before being fouled.