They always say results do not matter in pre-season but the Mata winner has certainly sent the fans home happy. It was a good work-out and, hopefully, no injuries ahead of next week's UEFA Super Cup final with Real Madrid.

90+3: Valencia has one last foray down the right but he opts to keep possession and that's the end of things!

90+1: Tuanzebe has performed well since coming on but he has been pulled up for a foul. Joel Pereira is out bravely to avert any danger but picks up a knock from Kownacki for his troubles.

90: Three minutes of injury time will be played as United look to close out another victory.

87: Substitute keeper Andrea Tozzo, who is on for Puggioni, has made a superb couple of saves to thwart Herrera's volley and Rashford's curler.

81: That was a fine goal from the Reds. Martial has looked menacing down the left since coming on and it was his pass which found Mata, who finished with aplomb.

80: Martial does get away this time and produces a dangerous cross - Herrera gets his head to it but Puggioni grabs it at the second attempt.

79: Martial is caught offside, just over 10 minutes for either side to produce a winner.

75: It's very noisy here but the action is happening in the stands rather than on the field. Sampdoria are making more changes...

70: Rashford is fouled as he makes a menacing run towards goal but Mata's free-kick is easy for Puggioni to field.

64: An equaliser had not really looked on the cards but a break down the left opened things up and the ball fell kindly for Praet, who made no mistake. Fellaini cannot reach a Martial chip as United look to respond.

62: Herrera has the ball in the net from Fellaini's pass and, although the offside decision is correct, it's greeted by loud jeers.

60: Jose switches to a flat back four with Valencia on the right and Darmian at left-back. Martial is on the left wing and Rashford the lone striker.

59: Fellaini does well on a couple of occasions but it's gone a little scrappy as Anthony Martial and Marcus Rashford look set to come on to pep things up.

57: The flag is up against Lukaku as he races onto a Valencia through ball. It looked a harsh call and the supporters aren't happy with the decision.

56: Herrera finds Valencia and the skipper's pass is controlled by Mata. However, the ex-Chelsea man cannot keep the move going despite having two bites of the cherry.

54: Lindelof brings Karol Linetty down but the set-piece is completely wasted and De Gea has the ball in his clutches.

50: Blind thunders away a cross by Caprari as the Italians strive to find a route back into the game. Their fans are in good voice away to our left.

48: It's been a slower-paced start to the second half, possibly with the substitutions having an effect. However, we think Sampdoria have the same XI out there.

46: As expected, there have been a raft of substitutions, we'll try to catch up with United's changes in particular. Juan Mata, Michael Carrick, Ander Herrera and Marouane Fellaini are definitely all on.

45+1: Pogba bends a wayward shot into the small end behind the goal defended by Puggioni. And that will be that for the first half.

45: We are into one minute of stoppage time as the skies begin to darken a little.

44: Lucas Torreira comes off worse in a collision with Matic, who takes no prisoners. He did show a softer side when checking a fan was okay when the ball hit her in the face earlier, though.

43: Pogba does well by displaying lovely balance but his simple pass to Lukaku finds the Belgium international in an offside position.

42: Quagliarella's cross looks pretty harmless until Lindelof makes a hash of his attempted clearance and it goes just wide. A nervous moment for the fans but it may not have been as close as it initially looked from our vantage point up in the stands.

39: Samp win a corner, which Gabriel Caprari takes but Pogba shows his value defensively by soaring to nod clear. Approaching half-time and United are still a goal to the good.

38: Regini slices a Pereira centre behind for a corner after the midfield prospect found space on the right. He has the ball in a similar area but his cross cannot pick out a red shirt.

36: Pogba and Valencia work another opening and the Ecuadorian's centre is met by Mkhitaryan's glancing header but the Armenian is unable to grab his second of the night.

35: Matic bites into a tackle to earn acclaim from the appreciative crowd. It's understandably a sea of red at the Aviva Stadium and they've enjoyed the action thus far.

34: Jacopo Sala fouls Darmian and it leads to another Valencia-inspired attack but Lukaku is crowded out inside the Samp area.

32: Puggioni leaps from his goal to divert a Pogba ball to safety. Valencia, who has been outstanding, then almost finds a way through as United continue to ask most of the questions.

29: Pogba is penalised for a foul as he tries to make something of a Pereira cross. Moments earlier, Lukaku chose the wrong option in the box when hanging onto the ball for too long.

28: Pereira screws an attempt wide of Puggioni's goal but he has been bright and heavily involved in the centre of the field. 

26: Pogba provided a flash of skill and extravagant pass out to Valencia but the move ended up breaking down. Still 1-0 to the Reds.

24: Lukaku latches onto a pass by Valencia down the right side and shows his confidence by cutting onto his left foot and bending a drive just wide. It looked like it might fly in.

22: A brilliant piece of skill by Valencia allows him to tear down the flank again and his cross is a good one. Mkhitaryan stoops to get his head to it and it's goalbound until Christian Puggioni dives to pull off a splendid save.

19: Chris Smalling concedes a foul in the centre circle on Quagliarella but he's soon taking a free-kick himself to get United moving down the right again.

15: Fabio Quagliarella scoops off target with a decent attempt. The Serie A side have been lively in the opening quarter of an hour but trail.

11: The goal was given to Mkhitaryan so we're sticking to that, he certainly tried to force it home. On close inspection, he gets his head to the ball first before it deflects home off a Samp boot.

9: Seconds after a very threatening situation at one end, United take the lead at the other. Darmian gets his cross away from the left and Mkhitaryan bravely meets the centre, after it goes over Lukaku's head, to force the ball home. There may be a suspicion of an own goal.

9: De Gea blocks the free-kick in a crowded goalmouth and Chris Smalling completes the clearance. United break at pace...

8: Blind makes a dangerous pass back to De Gea, who has to scramble to claw it away from goal. It's a fine save but an illegal one - free-kick to Sampdoria on the edge of the six-yard box.

4: Daley Blind draws applause for some cool defending inside his own box and it sparks a United raid. Play is switched to Matteo Darmian but his pass inside is cut out.

2: As we anticipated, United are lining up with a 3-5-2 formation. Henrikh Mkhitaryan is playing forward behind Romelu Lukaku with Paul Pogba straying out to the left early on.

Jose Mourinho on MUTV: "Of course, Nemanja has not really had a pre-season and has trained on his own but we will try to accelerate his process and give him 45 minutes tonight."

Antonio Valencia captains the team and leads United out of the tunnel. Sampdoria will provide testing opposition tonight - Vasco Regini is their skipper.

Tonight's referee is Neil Doyle with Robert Clarke and Dermot Broughton his assistants. All three are from Ireland. The players will soon be back out to get us under way.

Here is Sampdoria's line-up this sunny evening: Puggioni, Sala, Barreto, Caprari, Linetty, Praet, Regini, Pavlovic, Silvestre, Quagliarella, Torreira. Subs: Simic, Pires, Djuricic, Alvarez, Verre, Leverbe, Bereszynski, Capezzi, Murru, Tozzo, Bonazzoli, Kownacki.

The players are out on the pitch preparing for action - including debut-making Nemanja Matic.

We spoke to a couple of fans on the way in and it transpired one of them (below, middle) is the nephew (and barber) of former United defender Mal Donaghy. His namesake Ryan (right) has travelled from Belfast to be at tonight's game and is predicting a 4-1 win for the Reds.

We'll be releasing Jose Mourinho's team selection in 15 minutes' time at 18:45 BST, an hour before we get under way. Will Nemanja Matic make his debut?

MUTV's David May, Quinton Fortune and Paddy Crerand await the players. Kevin Moran is also here working with the official club channel.

The team bus has just arrived at the ground as kick-off time gets nearer and nearer. A convoy followed the main vehicle, containing United dignitaries, here to enjoy the match.

Quinton Fortune told us he's looking forward to seeing Paul Pogba and Romelu Lukaku star this evening. "But it isn't just individuals, of course. Pogba stands out for me but it's a team performance with people working together, having an understanding about defending and attacking at same time." 

Ex-Red Quinton Fortune has a wish list for tonight! "I hope for an injury-free game and everyone gets through it," he told us. "I want a lot of good play, good football and a few goals, plus a clean sheet! Just a good feeling for everyone at the game and another one under the players' belts in preparation for the Madrid match in the Super Cup."

Romelu Lukaku told us Jose Mourinho has a masterplan for this season - it will be interesting to see which formation the United boss employs tonight.