The Spurs fans behind the goal to the left cheer as Destiny Udogie wins their first corner.

Izzy Christiansen
Former England midfielder on BBC Radio 5 Sports Extra

There is a lack of athleticism on the Athletic Bilbao side. The counter attack, they had no numbers supporting the attack and all the United players were sprinting back into place in their own half.

Sam Huxley
BBC Radio 5 Live at Old Trafford

How are we rating this banner at Old Trafford? On a scale of Arsenal to Villa/Newcastle?

Image source, BBC Sport

Alex Berenguer's inswinging free-kick is punched away by Andre Onana.

United try to counter with a long ball but Julen Agirrezabala races miles outside his box to clear.

Daniel Stensson makes a good challenge to stop Josh Acheampong getting a cross in and Chelsea have a corner.

Reece James takes and Tyrique George heads it over the bar.

Kasper Hogh looks to run in behind the Spurs back four but Micky van de Ven mops up the danger perfectly.

Nizaar Kinsella
BBC Sport football news reporter

There are videos on social media seemingly shows Djurgarden fans with ticket for the home ends of the stadium breaking into the away end.

You can also tell that there are a good amount of fans from the Swedish club in the Chelsea parts of the stadium.

It is, after all, the biggest game in the club's history and they are very loud - but it will probably lead them to a Uefa fine.

Simon Stone
BBC Sport's chief football news reporter at Old Trafford

It was a feature of last week's game between these sides that Athletic Bilbao wasted a succession of early chances.

They have started this evening's game the same way.

Alex Berenguer was in an excellent position then, with the entire far side of the Manchester United goal to aim at but he curled his shot over.

The visitors are not in a position to pass up opportunities like that one.

A good spell this for Athletic. United looking a tad shaky. Leny Yoro catches a visiting player with a late challenge and concedes a free-kick.

This is quite similar to how Spurs set up against Eintracht Frankfurt and that certainly worked for them as the Norwegian Royal Family watch on from the stands.

Image source, EPA

Phil Jones
Former Manchester United defender on BBC Radio 5 Sports Extra

That chance was a warning sign for Manchester United. It was a good chance for Athletic.

Santeri Haarala tries to hook a ball beyond the Chelsea defence but it is cleared.

Djurgarden have made a positive start to this match as they look to overturn a three-goal deficit from the first leg.

Good chance for Athletic here. United don't deal with a cross and Alex Berenguer is in acres of space as the ball comes to him 12 yards out. He takes a touch and tries to bend a shot into the top corner but it goes over the bar.

In it comes and it misses all the Spurs defenders in the box as Ole Didrick Blomberg takes a touch and fires into the side netting.

More boos as Guglielmo Vicario takes his time over a goal kick.

Jens Petter Hauge looks to take on Pedro Porro but the Spurs right-back does well but isn't able to prevent the corner.

United knocking the ball around confidently at the back. Well until Andre Onana slices a clearance to the visitors. No harm done in the end though.

The ball is clipped in towards Patrick Berg but there's far too much on it as it races through to Guglielmo Vicario.

Plenty of boos for the Spurs keeper as he holds on to the ball for a little while.

Paul Robinson
Former England goalkeeper on BBC Radio 5 Live at Aspmyra Stadion

Ange Postecoglou has picked an attacking team. And Spurs have started on the front foot, pressing high and the message is clearly about starting quickly and getting that first goal.

Patrick Dorgu stops an Athletic attack and the home fans are loving it. Now Victor Lindelof clears a cross.

Rodrigo Bentancur lifts a clever ball into the back post to Richarlison. He takes a touch wide and his shot is blocked.