Rashford scores his first goal of season for United
Fellaini doubles advantage with close-range finish
Lukaku penalty saved after Simpson handballs in the box
Man Utd top of table after three straight wins
Get involved using #bbcfootball
Man Utd 2-0 Leicester
Matt Elliott
Former Leicester City captain for BBC Radio Leicester
Man United are such a strong side in all areas and there is a part of you as a Leicester player who thinks, "let's just keep it at 2-0"...
If Man United wanted to, they could wreak havoc but I am sure they will be happy with their two goals.
Man Utd 2-0 Leicester
Leicester earn their first corner of the match in the 84th minute, but cannot make anything of it.
Marouane Fellaini
Points sealed.
Marcus Rashford has made a brilliant contribution having come off the bench. He sets fellow sub Jesse Lingard free down the left-edge of the box.
Lingard holds the ball up and the chance looks to have disappeared, but the Englishman's low shot is diverted into the net by Marouane Fellaini from six yards out.
Was Fellaini offside? It looked marginal, but this time the linesman's flag stays down.
Image source, ReutersMan Utd 1-0 Leicester
Into the final 10 minutes, have Leicester got anything left to give? They have worked ever so hard today, but may head back home with nothing.
Man Utd 1-0 Leicester
Riyad Mahrez swings in a deep free-kick, but Eric Bailly acrobatically gets the ball away.
Image source, ReutersOn the next attack, Demarai Gray attempts another strike from around 30 yards out, but it is not the best and rolls out of play.
Man Utd 1-0 Leicester
United playing keep ball and can afford to, having taken the lead.
Leicester still pose a threat though...
Man Utd 1-0 Leicester
Matt Elliott
Former Leicester City captain for BBC Radio Leicester
I am slightly lost for words.
I didn't think for one moment Jamie Vardy would be the man going off...
Image source, ReutersMan Utd 1-0 Leicester
A final United change.
Anthony Martial off, Jesse Lingard on.
A Leicester sub too. Islam Slimani replaces Jamie Vardy.
15 minutes remaining.
Man Utd 1-0 Leicester
Romelu Lukaku gets a run at Wes Morgan for the first time, but lashes a shot wildly into the East Stand as he approaches the penalty area.
Not the sort of finishing you come to expect from the big Belgian.
#bbcfootball
ashic: That will do the kid an incredible amount of good. Floodgates opened?
olumide Ayorinde: It's a season of the substitutes for Man Utd
Man Utd 1-0 Leicester
Jose Mourinho's favourite Marouane Fellaini is being sent into the action to shore things up for the home side.
Henrikh Mkhitaryan is the man who comes off.
Man Utd 1-0 Leicester
Demarai Gray scored a cracker on this ground last season and attempts another similar effort, but does not catch it right and David de Gea can throw his cap on it.
Leicester have to come out of their own box now.
Man Utd 1-0 Leicester
Image source, ReutersUnited looking for a quick-fire second, but Romelu Lukaku's shot bounces into the hands of Kasper Schmeichel this time.
Man Utd 1-0 Leicester
Matt Elliott
Former Leicester City captain for BBC Radio Leicester
Super sub - Rashford didn't take long to make an impact did he.
Unguarded and unpressured.
Disappointed to concede from a set piece that wasn't really properly contested.
Marcus Rashford.
Breakthrough.
Henrkh Mkhitaryan swings in the corner and the ball is towards Marcus Rashford, sweeping in first time with a bounced effort.
Kasper Schmeichel gets a hand to it but can only palm into the roof of the net.
Shocking marking from Leicester.
Image source, ReutersMan Utd 0-0 Leicester
The United fans are making themselves heard and urging their side on.
Leicester, though, are sitting back and asking United to come at them,
Paul Pogba feeds Marcus Rashford in the area, but Harry Maguire comes across to block.
Corner...
Man Utd 0-0 Leicester
Matt Elliott
Former Leicester City captain for BBC Radio Leicester
At times it looks like Man United are running out of ideas here - Rashford will bring some much needed pace.
Man Utd 0-0 Leicester
United have attempted 30 crosses so far in the game, 10 for Antonio Valencia and 10 for Daley Blind.
Image source, EPAMan Utd 0-0 Leicester
Juan Mata off, Marcus Rashford on.
Pace.
Man Utd 0-0 Leicester
Oooh.
Riyad Mahrez drops a shoulder and gets past Daley Blind, but then flashes a shot across the face of goal.
Little more guile needed there when he found space.