Paul Pogba came off the bench to fire Manchester United into the Europa League quarter-finals, beating AC Milan 1-0 at the San Siro to complete a 2-1 aggregate win on Thursday night
The Frenchman, who had missed the previous 10 games with a thigh injury, made an instant impact after replacing Marcus Rashford at the break to score the crucial away goal as United joined Arsenal in Friday's draw for the last eight
Like Pogba, Zlatan Ibrahimovic came off the bench in the second half to face his former club but the Swede was denied with a header from close range by Dean Henderson during an open second period
United used all their experience to wind down the clock and might have doubled their lead on the night when Pogba's header from Dan James went narrowly over, but one goal would prove enough
When failing to win the first leg at home, United had been eliminated from six of their previous eight ties in European competition, but Pogba ensured that record wasn't extended during a controlled and disciplined second-half display
This competition provided United's last silverware in 2016/17, when Jose Mourinho added to that season's EFL Cup triumph after Louis Van Gaal had masterminded FA Cup success the previous campaign
They are United's only major trophies since Sir Alex Ferguson retired in 2013 and, while determined to win his first silverware in charge, Solskjaer claimed prior to Thursday's second leg there was more to progress than cup success
There was little intensity from his side during a lacklustre opening 45 minutes, however, as Milan carved open the best of the first-half chances
 Alexis Saelemaekers shot from distance to draw a simple save from Henderson, while Rade Krunic volleyed wide Saelemaekers' cross on the stroke of half-time
Solskjaer's men had just one shot on target before the interval, a speculative effort from Fred that was easily gathered by Gianluigi Donnarumma while James went down inside the box under a fair challenge from Fikayo Tomori
Quality with the final ball was lacking for United, and Solskjaer acted swiftly at the restart with Pogba replacing Rashford, who was struggling with an ankle injury
 The move paid instant dividends
James saw a shot blocked to start a penalty-box melee in which United kept their cool, with Fred's pressure on Franck Kessie leading the ball to be pushed onto Pogba
 Five yards out but at an acute angle, he shaped to cross only to shimmy and strike past Gianluigi Donnarumma at the near post
It was clear Milan boss Stefano Pioli needed to change something and he summoned Ibrahimovic from the bench in the 65th minute
 It posed a new problem for the United defence, who were thankful to a crucial block from Victor Lindelof to deny Kessie at the near post
Hakan Calhanoglu had provided the cross, and the Turkey midfielder continued to provide Milan with a creative spark as his next delivery was met by Ibrahimovic at the far post, rising above Luke Shaw, and forcing a good one-handed save from Henderson
Milan huffed and puffed in the closing stages, but Henderson was again alert when Theo Hernandez's cross deflected goalwards off Scott McTominay as United secured an impressive away win, their third in succession against Italian opposition in European competition
Manchester United boss  told : "I'm very happy of course
 We've come through a very difficult tie against a fantastic club, a very good team and we've overcome some difficulties
"You give yourself a chance to win a game of football when you keep a clean sheet
 Dean Henderson made a fantastic save towards the end and I'm very pleased with everyone's defending
 We know the back six, with the likes of Scott McTominay and Fred, always give everything
"There are many good teams left but you've got to be spot on
 It's a cup competition and anything can happen
 But we are through and we feel confident
"On goalscorer Paul Pogba's performance: "We've missed Paul
 He's been out for almost two months and any team would miss a player like Paul Pogba
 He was just getting into his best form
 He is very important for us and he's going to give us a big boost
 He makes a very, very big difference to us
"On facing Leicester in the FA Cup this weekend: "We are looking forward to Sunday, it's another quarter-final, so will just dust ourselves down and go again
"AC Milan boss : "We are disappointed because over the two legs we played like a great team and we could have scored in the first half
"I think the team deserved to continue (in this competition), but we had to give it a little bit more
 I don't think we deserved to go out
"Over the two legs, we did so much right, but the two goals we conceded were more down to our own errors - that's what is disappointing
"Pogba made the difference, while Henderson produced a big save to thwart Ibrahimovic but it was the way Fred wrestled control of the midfield that ensured United turned a lacklustre first-half display into a highly polished victory
The Brazilian helped his side come to life, bossing Kessie and Soualiho Meite in a stadium where they've often had a bit of heartache in the past
In eight trips to the San Siro, this is only their second win - and Solskjaer showed his delight with Fred's performance at the final whistle in what could prove a big moment in United's season
Manchester United defender Luke Shaw told : "Obviously, we're very happy we're through
 I'll be honest, and the lads and staff would agree, we weren't good at all especially first half we were awful
"The first 10-15 minutes, we started well, kept control of the ball but it was like a switch - we turned off, kept giving away balls, bringing pressure on ourselves and we were lucky
"Second half it always helps to have a world class player like Paul (Pogba) to make a difference and he did that
 But we know we need to be better than tonight
"It's a very good win and the positive is that we are through, we have players coming back and the squad looks better
"The Europa League quarter-final and semi-final draw will take place from 12pm UK time on Friday, March 19
 You will be able to follow both draws with 
Manchester United travel to face Leicester in the FA Cup quarter-finals at 5pm on Sunday
 Fiorentina host AC Milan at the same time
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