90' + 3' FULL-TIME: MANCHESTER UNITED 4-0 AZ
62' GOAL! 3-0 United, Mata fires the penalty home. He goes left-footed towards the bottom-right corner. Bizot goes the right way, but it's hit with too much power for him to get a touch.
62' Penalty for United! It's all going wrong for AZ now. Clasie chops Greenwood down inside the area, absolutely no doubt about the call.
61' United have got their tails up now. Mata crosses from the left towards Chong, but Wuytens heads it clear.
58' GOAL! That might just be that, Greenwood makes it 2-0! Garner wins the ball from Midtjso 20 yards out and it drops to Greenwood, who takes a touch and fires an excellent left-footed finish into the bottom-right corner from range.
57' AZ need to score two to top the group now. They've put in an excellent performance tonight, and even this narrow scoreline is harsh on them.
55' United have won six of their eight previous home games against Dutch sides in all competitions, drawing with PSV in November 2015and losing against Ajax in February 2012. Is there another win on the way now?
53' GOAL! Young scores, United lead 1-0! Williams and Mata combine down the left before Pereira finds his way out of a corner with a beautiful bit of footwork around Svensson. Matic then threads Mata in down the left and while his pull-back across goal doesn't look to have found anybody, Young fires in an excellent finish into the roof of the net from a tight angle at the far post.
45' + 1' HALF-TIME: MANCHESTER UNITED 0-0 AZ
44' Martial gets the ball inside the penalty area but Wuytens immediately gets across to stab the ball off his feet and behind for a corner. Bizot then comes out and gets a strong double fist to the corner.
18' An AZ corner from the left is headed away by Young. Clasie picks it up some 35 yards out and has a crack with his right foot, but it sails over the bar.
17' After 16 minutes at Old Trafford, United have had just 35 per cent possession of the ball. That's pretty remarkable. AZ totally in charge.
15' Greenwood has been directly involved in 75 per cent of Manchester United’s goals at Old Trafford in the Europa League this season, scoring two himself and providing one assist from their total of four. He has barely had a touch of the ball in the opening 15 minutes tonight.
11' Young just does enough to cut out a cross-field pass from Sugawara on the right. Idrissi would have been in acres of space at the edge of the area had it found its way through.
10' Idrissi is looking bright early on. He picks up the ball wide on the left and comes infield to shoot, but curls right-footed into the hands of Romero as he aims for the near post.
8' Idrissi plays an absolutely delicious rabona pass as AZ look to pick their way through, but United eventually get enough men behind the ball to deal with it. Young nearly plays his way into trouble by trying to dribble at the edge of his own six-yard box, but just about gets away with it.
4' Sugawara controls the ball at the edge of the area, flicking it up and hitting it right-footed on the half-turn. He catches it well, but it's straight at Romero.
2' AZ win an early throw-in up the field on the left wing as Young can't keep a high ball in, but they end up going all the way back to Bizot in goal.
1' We're off, as AZ get the ball rolling.
The teams are on their way out of the Old Trafford tunnel, and we’re almost ready for kick-off.