And there is the whistle!

Manchester United go through after a stirring comeback! A superb second-half showing from Erik ten Hag's side after they were undone in the first.

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The five added minutes are up. United are seconds away.

The flag is up for offside, but Raphael Varane doesn't know this.

He is still in the perfect spot at the perfect time, getting back in to hack the ball away from the mouth of the goal after Robert Lewandowski had steered it towards the target.

Peter Schmeichel
Former Manchester United goalkeeper on BBC Radio 5 Live

There is a lot of frustration in the Barcelona team right now. The forwards are making some really good runs but the ball isn't going into them and you can see the headshakes and hands being thrown up in the air.

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Chance!

Ferran Torres keeps a chipped ball in on the right and while there are three men in the middle, his cross is a touch too high. It glances off the top of the head of one of them and United survive.

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Have Barca got anything left up their sleeve? Manchester United have managed this very well since going ahead.

Just the five minutes added on. I expected more.

Into the final minute of the 90.

You have to imagine there will be a fair bit added on.

Peter Schmeichel
Former Manchester United goalkeeper on BBC Radio 5 Live

It will be massive for Manchester United to go through, the prestige of winning the tournament and they will be one of the favourites to win it.

Scott McTominay is here to destroy. He comes on for Marcus Rashford, tasked with halting Barca at all costs.

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Casemiro takes a yellow for the team, throwing Robert Lewandowski to the turf to stop Barca breaking.

Alejandro Garnacho receives a bit treatment to work the clock down towards the final five minutes.

Zoe W: It's finally back; the excitement, the passion and the belief that this could once again be our year.

Dave Jefferies: How can this only be a Europa League play off? Feels like a Champions League semi-final.

More action for the ref.

He whips out his yellow card again to book Sergio Busquets following his foul to stop Alejandro Garnacho breaking.

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Barca continue to twist in search of a formula to get back into this.

Marcos Alonso - scorer of the opener in the first leg - is on for Ronald Araujo.

Does this mean a switch to three at the back for the away side?

Marcus Rashford goes shoulder to shoulder with Ronald Araujo and comes off second best.

He stays down but isn't seriously hurt. United put the ball out and we can all have a breather for a bit.

Manchester United are a good cross away from sealing this tie!

Alejandro Garnacho is in down the left but his low ball is behind Marcus Rashford and Barca survive.

Another yellow card.

This is for Alejandro Garnacho, who upends Jules Kounde. I'm guessing Slim still hasn't written him back.

Andrew Priestley: That is a fantastic finish, to control the strike but to keep the pace on the shot.

Raphinha, who scored Barca's equaliser in the first leg, is off. Ansu Fati replaces him.