United are already on the attack and Wes Morgan blocks from Mkhitaryan with the Red Devils baring down on the visitors goal.
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The referee blows his whistle as Valenia chucks a ball into the box from the right and Michale Oliver decides that Lukaku is all over the James.
Leicester get out of their own half but James sends the ball wide.
Bailly heads out on the far side after pressure from Vardy as Maguire jogs into the box in preparation for the throw. The long throw only gets to the edge of the box and Jones heads it away.
Lukaku tries to get the attack going but there is no one to get on the end of his ball. Mahrez on the ball and he swings a ball in as he tries to find Albrighton in the box, but Valencia had a watchful eye on the former Aston Villa player.
United are on the attack again. Leicester are clearly looking to stay organised with the hope of catching their hosts on the break.
Mata gives the ball away in Leicester's box and Bailly reminds Mahrez that he is on his turf as he kicks the ball out of play. Mahrez takes a free-kick about 35 yards out and Morgan gets a head ot it in the box but he's deemed to be offside, with James looking like he was in a better position.
United back in possession with Pogba playing a 1-2 with Valencia on the far side of the pitch. Leicester have a throw-in which Mahrez takes, only for Jones to nudge Okazaki off the ball.
A long ball over the top looks like it will fall perfectly for Vardy who is in the box but De Gea comes and collects. Mkhitaryan has a shot from the edge of the box but Morgan block before Schmeichel collects easily.
Everything good united are doing is coming down the far side where Mkhitaryan is and Pogba is regularly drifting over to get involved with play.
Rashford collects the ball and Blind looks to overlap but the Frenchman runs into traffic. Vardy is trying to bring the Foxes into the attack after Ndidi wins the ball in the middle of the part. He plays Albrighton in but Valencia is there to clean up.
Mata gets the ball in the back of the net and it is wrongly ruled out for offside. Pogba sends a ball into the box for Lukaku. The striker has his back to goal and plays it to Mkhitaryan whose shot is blocked before Mata taps home.
Pogba with the chance this time as he sends a volley wide after Martial's cross into the box.
Schmeichel to the rescue as he reaches across his body with his left arm across to turn away Mata's shot which was heading for the inside of the near post. It is all United at the moment. The home fans are calling for a foul after Lukaku hits the deck, but it looks like basic competition of two physical players.
James sends a ball towards the box and Vardy plays it to Okazaki on the edge of the box but his shot is easily caught by De Gea. The Foxes wioll need to take their chances to get anything tonight.
Pogba aims for the inside of the near post from about 25 yards, but it's not on target. United quickly getting into their stride here. Every Leicester player bar Vardy is in their half. They will clearly just ry to use their pace in order to get at the home defense and De Gea.
Pogba with a wasted effort just outside the box as another shot goes wide. Another Pogba shot. It's as if Leicester want him to shoot.
Martial passes his the ball from left wing and he swings at it first time but the left-foot shot is wide of the far post.
Martial tries to open the scoring but his tame shot is straight at the keeper. United think they should have a free-kick on the end of the box. It looked like the block from Simpson was deliberate but the ref waved play on. Another save from the Foxes keeper from Mkhitaryan.
Pogba just cm's wide of the goal. Another long range effort that just wouldn't go on.
First Half Ends: 0-0 / Second Half Begins
Lukaku thought he had space in the box to set up Mkhitaryan but the Leicester defence are alert to the danger. United are starting this half as they ended the first.
Both managers are up in the technical area but a win for the home side would take them back to the top of the table. It's all United as Valncia plays in Pogba on the right. The French midfielder has a good 15 seconds to decide but when he crosses Ndidi is there to head it clear, but only about six yards outside of the box.
Lukaku is down on the edge of the box as he and Maguire continue their battle.
It has been all the home side since play has resumed. Mata shouts for handball and the ball does appear to hit Fuchs on the hand, but there was hardly any room for him to move his hand away.
PENALTY as Martial's crosses into the box from the right and it hits Simpson on the arm.
The Foxes keeper saves it low to his right and Lukaku got a good connection but the Dane was equal to it.
GOAL: RASHFORD @ 1- 0
Rashford has only been on the pitch a couple of minutes. he won the corner after Maguire blocked his cross and he gets a tap in from Mkhitaryan's corner.
Leicester can rightly be disappointed after 70 minutes of organised play.
GOAL: Fellaini
The Belgian doubles the lead. Lingard runs down the left and into the box and manages to get it past three Leicester defenders with the final ball coming of Fellaini's knee.
And back to the top of the table unless Leicester can work wonders in the next eight minutes (+ injury time).
FULL TIME: Manchester United 2 Leicester City 0
Before the whistle goes that's another Lukaku chance over the bar after it's deflected by Morgan.
Another good day for United.
Two goals, three points and top of the Premier League table.
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