AC Milan player ratings:
Gianluigi Donnarumma - 6/10
The Italian shot-stopper didn't put a foot wrong in the tie and was very tidy in passing out from the back. He was beaten by a very good strike from Pogba.
Pierre Kalulu - 5/10
The youngster came in for the injured Davide Calabria and did well to keep a normally lively Marcus Rashford quiet.
Simon Kjaer - 5/10
AC Milan's goalscorer from the first leg did his job to the best of his ability. However, he was caught out of position at times.
Fikayo Tomori - 5/10
The Chelsea loanee was solid defensively as he won all his ground duels. He also made two interceptions and completed three tackles.
Theo Hernandez - 5.5/10
The left-back, who missed the first leg through injury, was rampant, charging at Aaron Wan-Bissaka and getting the better of the England right-back repeatedly.
Soualiho Meite - 5/10
The midfielder was wrestled off the ball far too easily inside the box for the Manchester United goal. Oddly enough, he failed to get back on his feet quickly.
Franck Kessie - 6/10
Another solid performance from the midfielder. Kessie completed the second-most passes for Milan on the night and was energetic throughout.
Hakan Calhanoglu - 6/10
Another player who missed the first leg of the tie, the Turkey international created a game-high five chances in the second leg.
Alexis Saelemaekers - 5/10
Saelemaekers had the most shots on target for the hosts and he was constantly in and around the opposition box, looking to pounce on loose balls.
Rade Krunic - 5/10
The Bosnian was very good defensively and was solid on the ball, winning four duels. He was substituted in the 72nd minute.
Samu Castillejo - 5/10
The former Villareal man played in an uncharacteristic false-nine role. He struggled to make an impact and was substituted after the hour-mark.
AC Milan substitutes ratings
Zlatan Ibrahimovic - 5/10
The 39-year-old came close to scoring the equalizer for Milan late in the game, but he was denied by a good save from Henderson.
Diogo Dalot - 5/10
He came on for Kalulu in the 65th minute and got a yellow card for repeatedly fouling Pogba.
Brahim Diaz - 5/10
He came on early enough but had no telling impact on the game.