Manchester United 1-1 Celta Vigo: Uefa Europa League semi-final as it happened

That is all for this particular blog, thanks for following along. Post-match reaction to come from Mourinho overnight.

We will also be back tomorrow evening to bring you live coverage from The Hawthorns, where Chelsea will seal their fifth top-flight title if they manage to overcome West Brom. Everton also host Watford at Goodison Park.

Goodbye for now.

And breathe!

That was certainly an explosive finish to an otherwise relatively comfortable evening for United. Guidetti will be thinking about that last-gasp miss for some time to come, I'm sure.

The influential Bailly will be a big loss for the Red Devils' first Europa League final, which takes place on Wednesday 24 May at Friends Arena in Stockholm.

Manchester United reach the Europa League final for the first time

Full-time

Manchester United 1-1 Celta Vigo (Manchester United win 2-1 on aggregate)

Incredible late drama.

A last-ditch ball forward is flicked on by Hernandez and Cabral feeds it to Beauvue. The Guadeloupe international tees up Guidetti, who cannot turn the ball home from close range.

What a miss right at the death. United are through.

Ajax have survived a hairy evening in Lyon to reach a first European final since 1996. Will United join them?

Herrera thrashes the ball home but the whistle had already gone for a foul by Pogba on Mallo.

It won't count.

Full-time

Lyon 3-1 Ajax (Ajax win 5-4 on aggregate)

It's all going off at Old Trafford. An almighty scuffle breaks out and both Bailly and Celta goalscorer Roncaglia receive their marching orders.

They are still at it as they head towards the tunnel. Mourinho reacts by withdrawing Rashford in favour of Smalling.

The fourth official signals SIX minutes of added time. Can United hold on?

Red card: Facundo Roncaglia (Celta Vigo)

Red card: Eric Bailly (Manchester United)

Poor old Viergever. His own goal is followed by a second yellow card.

Ajax rocking.

Roncaglia heads home for Celta after a whipped cross from Bongonda. One more and they are through!

Red card: Nick Viergever (Ajax)

Goal: Manchester United 1-1 Celta Vigo (Facundo Roncaglia)

Lingard squares up to Gustavo Cabral before seeing a shot cannon back off the defender.

At the other end, Bailly produces a superb block. Celta's half-hearted appeals for handball are waved away.

A nail-biting final few minutes ahead in France. Rachid Ghezzal's header from a Maciej Rybus cross deflects in off Viergever.

Ajax now lead 5-4 on aggregate...

Goal: Lyon 3-1 Ajax (Nick Viergever OG)

Herrera can have no complaints as he is cautioned for a foul on Beauvue. Bailly rises to head away the free-kick before the ball runs behind for a goal kick, despite an attempted clearance from Valencia.

Celta have been in the ascendancy for much of this second half. Jozabed and Bongonda have both added fresh impetus off the bench, but the goal-shy Galicians just do not look like scoring.

With his final roll of the dice, Berizzo sends on Claudio Beauvue in place of Sisto.

Mkhitaryan, who has taken a couple of knocks in this second half, is the man to make way for Carrick.

Given too much space to operate by Mkhitaryan, Mallo swings in another decent cross from the right flank.

An unmarked Guidetti positions himself nicely between Blind and Bailly, but gets his close-range header all wrong and the ball sails wide.

Romero concedes a cheap corner and Rashford is unable to get much purchase on his clearing header at the front post. The ball bobbles off Bongonda before Guidetti is whistled for pulling back Darmian.

Michael Carrick is preparing to enter the fray.

Jozabed collects possession from Aspas in plenty of space and unleashes a muscular right-footed shot that whizzes past the post. A diving Romero seemed to have it covered.

Alvarez gets down low to his right to repel a shot from Fellaini that threatened to creep in at the near post.

The subsequent corner comes to nothing as Lingard is penalised for impeding the goalkeeper.

Berizzo makes his second change of the evening with just over 20 minutes remaining. Radoja is replaced by Belgian winger Theo Bongonda.

Aspas goes down easily after a collision with Mkhitaryan. His open show of petulance after being denied a free-kick earns him a yellow card for dissent.

Super stuff from Rashford after Herrera seizes on a sloppy pass. He weaves his way through before a lofted effort on goal is blocked by Alvarez.

Chance!

Sisto declines to shoot first time following a searching centre from Mallo and instead chooses to tee up Guidetti, who slices his shot wide.

Mkhitaryan is now down and in need of treatment after taking a whack to the head. Rooney comes out to warm up.

Lingard lofts an enticing ball across the six-yard box after Pogba combines with Mkhitaryan. However, nobody in red anticipates the danger and Celta can clear.

Aspas, supported by Sisto and Guidetti, rather selfishly shoots straight at Romero. It's just not happened for Celta in the final third during this semi-final.

Pogba and Rashford, hamstrung by a lack of runners in behind, both lose possession and allow Celta to push on. Mallo crosses again to the near post as the referee blows up for an infringement.

Just let that sink in for a moment...

Great goalkeeping from Alvarez to push a vicious effort from Mkhitaryan over the crossbar. The Armenian certainly got hold of that one.

Celta begin the second period on the front foot. Captain Hugo Mallo is sent scampering towards the byline by Sisto and his powerful low cross is turned away well by Romero.

The second half at Old Trafford has begun. One change at the interval from Berizzo, who withdraws Wass in favour of Fulham loanee Jozabed.

Not clear if that's tactical or injury related.

Late first-half drama in Lyon, where two goals in quick succession from in-demand striker Lacazette have reduced Ajax's aggregate lead to 5-3. He has now notched 33 goals across all competitions this term.

They couldn't...could they?

Goal: Lyon 2-1 Ajax (Alexandre Lacazette)

Goal: Lyon 1-1 Ajax (Alexandre Lacazette)

Half-time

Manchester United 1-0 Celta Vigo (2-0 on aggregate)

With the seconds ticking down towards the end of the first half, Celta engineer a corner off Darmian.

Guidetti heads Wass' delivery tamely into the hands of Romero.

Pogba combines well with Lingard before being hit late by Hernandez. Mkhitaryan turns a pass around the corner for Rashford, who is suddenly clean through on goal.

Alert defending from Jonny to move towards the ball and force an offside flag.

Good play from Sisto to whip in an accurate cross that is thumped wide by the head of Wass.

Lingard is dispossessed while trying to break up a Celta attack and Sisto, who scored against United in this competition for FC Midtjylland last term, curls an effort towards the top corner. Romero holds.

Pogba brings down Hernandez and Aspas immediately gestures for a yellow card. Hategan disagrees and looks to warn the Celta playmaker over his conduct.

Blind has looked totally panicked during this opening 35 minutes, but this time he covers well and picks up a free-kick after being barged over by Aspas.

After a route one ball from Romero to Fellaini, Pogba fizzes a shot over. He thinks it's clearly taken a deflection, but the officials disagree.

Blind goes in hard on Hernandez and is quickly shown the first yellow card of the evening.

Teenage sensation Dolberg strikes to further cement Ajax's dominance over Lyon. They now lead 5-1 on aggregate.

All signs point to a Manchester vs Amsterdam final in Stockholm.

Goal: Lyon 0-1 Ajax (Kasper Dolberg)

Nothing doing for Wass as the Danish winger dispatches a speculative free-kick well wide.

Romero throws up a hand to tip a curling left-footed shot from Hernandez over the top. That looked to be going over anyway, although he obviously couldn't be sure.

A dangerous low cross from Rashford flashes across the box and safe. Pogba then launches an ambitious long-range effort into orbit.

At the other end, Ander Herrera, dishing out some Hazard-esque treatment, fouls Wass once again and Romero rushes out to punch the ensuing free-kick clear.

After Blind is nearly left red-faced again by Aspas and is lucky not to be whistled for fouling the Spaniard, twinkle-toed Mkhitaryan gracefully slaloms his way through the Celta backline before teeing up Rashford for another effort that is deflected behind by Roncaglia.

That goal looks to have given United real confidence after a sluggish start. A scooped ball over the top from Jesse Lingard finds Mkhitaryan, who lashes a shot over the crossbar.

United supporters' groans at Pogba declining to play a forward pass soon turn to relieved cheers as the oft-maligned Fellaini stoops to head home a terrific Rashford cross at the back post.

The goalkeeper did get a hand to the ball, but he could only push it meekly against the post and in. Should he have done better once again? I think he may have been expecting a header back across goal.

Huge task ahead for Celta now. United have one foot firmly in the final.

Goal: Manchester United 1-0 Celta Vigo (Marouane Fellaini)

A shaven-headed John Guidetti - formerly of Manchester City, Burnley, Stoke and Celtic - is flagged for offside as he tries to keep an attack alive.

Pogba, following an error from Wass, then escapes from both Aspas and Nemanja Radoja with a few nonchalant keepy-ups before playing in Rashford.

The England striker, who has scored in back-to-back Europa League matches, is just prevented from shooting by Roncaglia.

Savvy defending from Facundo Roncaglia to win a free-kick off Rashford and stop the 19-year-old from beating him for pace.

Celta are dominating possession at the Theatre of Dreams. They have been purposeful and quicker to the ball.

Quiet in the first leg, Aspas looks lively early on here. He fools Matteo Darmian with his movement, collects a long ball from Gustavo Cabral and cuts inside Blind before seeing a bending shot tipped over the crossbar in theatrical fashion by Romero.

Daniel Wass' corner to the near post is then nodded wide by Cabral. Plenty of intent from Celta during these opening exchanges.

Blind gives the ball away cheaply in a dangerous area and Aspas is on it like a flash. He breezes past the Dutchman to the byline and provides a cutback that Sisto is unable to turn towards goal.

The ball eventually finds its way out to Hernandez, who whips in an inviting low cross that is smothered by Sergio Romero.

Nervy start from the hosts.

Here we go then. The biggest game of United's season is off and running. Can they build on their one-goal lead, or will previously overawed Celta throw a spanner in the works?

Let's find out.

The teams have emerged from the tunnel and we are almost ready to get underway. Ovidiu Hategan of Romania is your referee.

This is what they will have to compete with...

Under 10 minutes remaining until kick-off and the atmosphere seems to be building nicely at Old Trafford.

Mourinho is looking for an often subdued home crowd to play their part tonight.

In his pre-match interview with BT Sport, Mourinho, battling to be heard against the backdrop of 3,000 passionate away supporters, reiterates that tonight is a huge game and claims his side will still aim to score goals despite knowing that a clean sheet will see them through to Stockholm.

On his team selection, he says: "we don't have many options in this group".

Veteran striker Wayne Rooney returns to his familiar seat on the bench tonight. United's long-tenured captain confirmed during yesterday's press conference that he wants to stay at Old Trafford, although admitted his frustration at a lack of regular first-team opportunities.

"I've been at this club 13 years, of course I want to play football," he said. "I haven't thrown my toys out of the pram but I do want to play to help the team. Football changes. You have different challenges in your career. I would like to play more but I've tried to help the team on and off pitch.

"Of course you want to play every game. I've had to try to take my chance when called upon. I try to do my best for the team."

United vs Celta is not the only semi-final second leg taking place this evening, of course. In central France, Ajax will be hoping to finish the job against Lyon and reach their first European final in 21 years.

The Dutch giants hold a commanding 4-1 advantage thanks to a brace from on-loan Chelsea striker Bertrand Traore and further efforts from Kasper Dolberg and Amin Younes. Mathieu Valbuena notched an away goal for Bruno Genesio's side to give them faint hope of a comeback.

Here's confirmation of that Celta team. Pione Sisto was pretty much their only attacking spark last week and Berizzo will be expecting to see much more from former Liverpool flop Iago Aspas, who has bounced back brilliantly from that torrid stint at Anfield.

Berizzo believes that Celta need to produce a perfect display if they are to emerge victorious from their maiden major European semi-final...

Tomorrow represents a massive hurdle for Celta. This in itself is a motivation. Having nearly 3,000 people travelling all the way from Spain, even after losing the first leg 1-0, those fans didn't give up, even against the most powerful team in the world with 70,000 of their own fans. We've got to go with the attitude that in football, everything is possible.

We need to put in another perfect performance. They deserve this game as a reward for their hard work and they deserve to play well and to put in a good performance. It's a just reward for all our hard work in this competition.

We started 10 months ago and wanted to see how far we could go. I really hope the occasion allows them to go out and give a great account of themselves.

Both Mourinho and Berizzo revert back to the same starting XIs that began last week's first leg. Nice and easy.

Phil Jones comes onto the bench in the absence of Young. Celta's list of substitutes is also identical.

Confirmation of tonight's team from United...

Celta Vigo XI: Alvarez, Mallo (c), Cabral, Roncaglia, Jonny, Wass, Radoja, Hernandez, Aspas, Guidetti, Sisto

Subs: Ivan Villar, Fontas, Diaz, Bongonda, Beauvue, Jozabed, Sergi Gomez

Manchester United XI: Romero, Valencia (c), Bailly, Blind, Darmian, Fellaini, Herrera, Pogba, Lingard, Mkhitaryan, Rashford

Subs: De Gea, Jones, Mata, Rooney, Martial, Smalling, Carrick

Celta Vigo, as has been their wont of late with nothing to play for in La Liga, also made widespread changes for a 3-0 defeat to fellow mid-table outfit Malaga at La Rosaleda on Sunday that extended their losing run to five consecutive matches across all competitions.

With Argentine midfielder Pablo "Tucu" Hernandez passed fit following a lower back injury, only luckless former United striker Giuseppe Rossi - dealing with yet another serious knee injury - is currently sidelined.

Here is how an embattled Mourinho responded to those claims over gambling on Europa League success...

The situation is simple. Seventeen matches in seven weeks with 16 players is impossible. It's not a gamble, it was a simple decision, based on common sense. In April and May, 17 matches with 16 players, is completely impossible

So, since the moment we lost players, and we lost initially four of them in one week when we lost [Chris] Smalling and [Phil] Jones from the national team and we lost Zlatan and Rojo against Anderlecht in that moment and, after that, we lost boys that could be good alternatives - Ashley Young, Luke Shaw, Tim Fosu-Mensah. So, when we lost these players in a period of 17 matches in seven weeks, it was an impossible job. It was not a gamble, just a consequence of our situation.

We are in this situation now and we have to fight for it, so let's see if tomorrow we can do it and if we can go to the final. But it doesn't matter what, no regrets. We are giving everything we can, the players, myself, everyone that works around here. We are giving everything so, when you give everything, no problem.

In terms of team news for tonight's clash, Mourinho, who followed through on his promise to rest players for Sunday's trip to Arsenal by making no fewer than eight changes, has no fresh injury worries to contend with.

Antonio Valencia has trained after missing a 2-0 defeat at the Emirates Stadium that was more akin to a pre-season friendly in its utter lack of intensity, while Marouane Fellaini is available again having missed out at the weekend due to a domestic suspension. The likes of Eric Bailly, Daley Blind and Pogba should also return.

Zlatan Ibrahimovic, Marcos Rojo, Luke Shaw and Timothy Fosu-Mensah have all been lost for the remainder of the season, as has Ashley Young due to the hamstring issue he sustained just 11 minutes after replacing Henrikh Mkhitaryan in Vigo.

Whether you buy into Jose Mourinho's rather bizarre claim that this is "most important match" in Manchester United history or not (and I have an inkling that you probably don't), there is unquestionably a lot riding on tonight's Europa League semi-final second-leg clash against Celta Vigo at Old Trafford.

With the self-proclaimed 'Special One' having taken quite a significant gamble by prioritising a maiden triumph in Europe's secondary club competition over their pursuit of a top-four finish amid a relentless fixture list, progression and a final victory in Stockholm later this month are imperative if the Red Devils are to hop back on the Champions League gravy train after a one-year absence.

The pre-match omens are good for the hosts, who left the atmospheric Estadio Balaidos last week with a clean sheet and an away goal thanks to Marcus Rashford's delightful second-half free-kick that deceived goalkeeper Sergio Alvarez. As per Opta, United, no doubt distracted by this week's news that Fifa are in the process of seeking clarification on Paul Pogba's world-record move from Juventus, have progressed from all 18 of their European knockout ties in which they won the first leg away from home.

However, it should be noted that Eduardo Berizzo's Celta Vigo, currently drifting in mid-table domestically, have scored in all six of their away fixtures during this competition. Could they make their opponents pay the ultimate price for their profligacy in Galicia?

Team news and live updates on the way. Don't go anywhere.