Manchester United came from behind to beat Barcelona 2-1 on the night and 4-3 on aggregate to win their Europa League play-off at Old Trafford
Robert Lewandowski's early penalty had left Erik ten Hag's team with work to do but his half-time change turned the game with second-half goals from Fred and substitute Antony enough to take United through to the round of 16 at the expense of Xavi's Barca
It was a comeback that had not looked likely at the interval but instead made it a night to remember, a huge moment for Antony and for Ten Hag's improving team
 They go into Sunday's Carabao Cup final still chasing glory in four different competitions
The atmosphere had been raucous before kick-off, that sense of the potential for an occasion to savour up against fellow European heavyweights
 But for all the excitement, for all the noise inside Old Trafford, it was Barcelona who landed the first blow
Bruno had the opening chance of the game, finding himself free on the right but only able to fire his shot into the feet of Marc-Andre Ter Stegen in the Barcelona goal
 But that was a minor failing compared to the costly error that was to follow at the other end
Alejandro Balde was running away from goal in the corner of the penalty box when the United captain tugged at his arm
 It was foolish and though David de Gea got a touch to Lewandowski's penalty he could only palm the ball into the top corner of the net
Marcus Rashford, coming into this having scored 16 goals in 17 games since the World Cup, looked threatening and Old Trafford was abuzz whenever he had the ball
 But once in front Barcelona gained a measure of control through Sergio Busquets and Frenkie de Jong
The 2-2 draw in the Camp Nou one week ago had ebbed and it had flowed, the strengths and weaknesses of both teams on show
 But there was a contrast for 45 minutes this time
 Ter Stegen appeared calm
 De Gea's kick almost gifted a second goal to Barcelona
"We have improved a lot already as a team and the next stage is to beat teams like Barcelona," Raphael Varane had said before the game
 The onus was on Erik ten Hag, fresh from his midweek lunch with Sir Alex Ferguson, to find a solution to the problem
The United boss did so with the withdrawal of the ineffective Wout Weghorst, rejigging his forward line with the introduction of Antony
 The reward was instant, Fernandes squaring for Fred and the Brazilian firing beyond Ter Stegen with his weaker right foot
De Gea still had to save superbly to deny Jules Kounde at the other end but the momentum was with United and they took the lead in the tie soon after
 Good work from Luke Shaw and Fernandes in the corner eventually led to Antony's composed finish on the angle
Old Trafford erupted in joy, the moment they had been waiting for - the team they had been waiting for
 Barca boss Xavi tried to turn the tie from the bench but - even with Rashford forced off - he could not repeat the trick of Ten Hag
 The Dutchman's revival of this famous club continues
Manchester United have had 19 goals scored by substitutes in all competitions this season, the most of any side in Europe's big five leagues
 Antony's will rank as one of the most important and came following a crucial switch by Ten Hag at the interval
Weghorst has started all 11 games since signing for United last month and is clearly a favourite of his compatriot
 But Ten Hag is ruthless enough to recognise when something is not working and his swift swap at half-time helped his team to turn this tie around
Fernandes moved to the middle, Jadon Sancho reverted to the left
 Rashford went up front and offered that threat in behind
 Antony played on the right
 It worked
 Fernandes set up the equaliser having roamed to the left
 Antony scored the winner
Ten Hag has felt short of options for much of his time in charge
 No doubt he will want more next season
 But he has already shown himself capable of identifying what is required in a game and finding the solution
 It made the difference against Barcelona
When asked on  if this is his biggest win as Manchester United manager: "I think so, yes
 We have had some good wins - Liverpool and Arsenal at home
"Over two legs, against Barcelona, leaders in La Liga, eight points ahead of Real Madrid
 We have all seen Real Madrid this week
 So if you can beat them, then yes, this is my biggest win
"Asked in the press conference when he believes Barcelona will be able to compete for major European trophies again, Xavi said: "Hopefully, next season
 We competed well
 At the end we lost, but it was really different from last season
"Last season, it was impossible to compete
 This season was different
 We competed well, but the small details make the difference
 We have to learn from our mistakes and be ready for next season
" now switch their attentions to Wembley, where they take on in the Carabao Cup final on Sunday, live on ; kick-off 4
30pm
 Erik ten Hag's side then host in the FA Cup on Wednesday; kick-off 7
45pm
return to LaLiga action on Sunday at ; kick-off 5
30pm
 The league leaders then travel to bitter rivals in the Copa del Rey semi-finals on Thursday; kick-off 8pm
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