Man. Utd V Arsenal - As it happened.
WHAT A GAME! United lucky to draw, but end-to-end football and a brilliant fixture. Match report to follow imminently.
FULL TIME: MANCHESTER UNITED 2 - 2 ARSENAL
ARSENAL SCORE BUT IT'S RULED OUT FOR OFFSIDE, WHAT AN ENDING!
Fellaini flagged for offside.
De Gea catches well from an Arsenal cross and wins a foul as Lacazette heads the ball out of his hands.
CLOSE: Leno fumbles a swerving Rashford shot, ball could have very easily gone behind the German.
What a crazy few minutes! Old Trafford has finally calmed down.
Lingard's goal was his first of the season.
De Gea again! Aubameyang goes for the far corner, De Gea does well to claw it away.
OFF Rojo, ON Fellaini.
GREAT SAVE: De Gea does really well to block Aubameyang with his feet.
WOW! Lingard scores straight form the kick off after Arsenal score. It is unsure whether it was a Lacazette goal or an own goal, who cares! WHAT A GAME!
GOAL: LINGARD: MANCHESTER UNITED 2 - 2 ARSENAL
GOAL: LACAZETTE: MANCHESTER UNITED 1 - 2 ARSENAL
Mustafi limping for Arsenal, this is a problem as ARSENAL HAVE ALREADY MADE ALL THREE SUBS.
Final change for Arsenal, OFF Iwobi, Lacazette ON.
First change for Manchester United, OFF Martial, ON Lukaku.
Martial brings down Sokratis, eventually cleared away by Matic as Arsenal take it quickly and hit on the counter-attack.
The atmosphere is electric at Old Trafford!
Real opening for Manchester United, Dalot charged out and was onside, he waited too long and his cross was eventually blocked by Mustafi.
Torreira is down injured, Arsenal will hope that this isn't too serious as they are running out of subs.
SECOND HALF: MANCHESTER UNITED 1 - 1 ARSENAL
As predicted, Ramsey does not continue. OFF Ramsey, ON Mkhitaryan.
Early reports are that Rob Holding has teared his ACL, it looked nasty.
What a half of football! Incredible stuff from Old Trafford, a terrible De Gea mistake and questionable Martial goal due to offside calls, everything is happening!
HALF TIME: MANCHESTER UNITED 1 - 0 ARSENAL
Rob Holding can't continue. OFF Holding, ON Lichsteiner.
Ramsey is tying to run off his injury, however it looks like he will not be able to continue after half time.
THREE MINUTES ADDED TIME
Ramsey is down injured after tackling Matic, it looks like it could be his knee here. Ramsey has been down for a number of minutes.
ANOTHER ONE! You're joking! This time it's a yellow for Matic after he took one for the team and pulled Aubameyang's shirt back, would not be shocked if we saw a red card tonight.
ANOTHER YELLOW! Now Bellerin is booked for a late challenge, the atmosphere is fiery!
Yellow card for Rojo after a horrible challenge on Guendouzi, he's lucky not to be sent off for that.
Mustafi booked for swiping Marcus Rashford's legs, what a start to the game!
Ramsey's effort is blocked out for a corner.
Rob Holding is down with an injury. It looks like he will have to come off here.
Leno makes an initial decent save from a corner, however pushes the ball back into danger. Herrera squares it to Martial who smashes the ball home from close range!
GOAL: MARTIAL: MANCHESTER UNITED 1 - 1 ARSENAL
Guendouzoi trips Martial, free kick to Manchester United in a dangerous position.
WHAT A MISTAKE! Wow, David de Gea has his head in his hands and rightly so. He fumbled a simple Mistafi header in to his net! It was cleared off the line but goaline technology has given the goal!
GOAL: MUSTAFI: MANCHESTER UNITED 0 - 1 ARSENAL
Dalot recovers well and knocks the ball out for a corner. Kolašinac is looking very lively.
A very nervy opening 20 minutes.
CLOSE: Kolasinac whips in a dangers cross which Chris Smalling just about gets away, he tried to clear the ball off balence and ended up scuffing his clearance.
Iwobi does well to get the wrong side of Bailly, he recovers well and puts the ball out for a corner.
Good defending from Darmian to shield the ball away from Aubameyang.
Another foul as Marcos Rojo bundles over Arsenal's Ramsey, who is captaining the Gunners tonight.
Guendouzi trips Matic, free kick to Manchester United. The atmosphere at Old Trafford is brilliant!
KICK OFF: MANCHESTER UNITED 0 - ARSENAL 0
THE TEAMS ARE OUT! Stone Roses' 'The One' is playing and there is a real buzz at Old Trafford.
A look inside the Manchester United dressing room:
The Manchester United players have arrived at Old Trafford!
It's a misty night in Manchester but Old Trafford awaits! A sell-out crowd is expected to watch the tie!
ARSENAL STATS: They have scored 24 second-half goals in the Premier League this season, more than any other side. Pierre-Emerick Aubameyang has scored with his last 10 shots on target in the Premier League - no goalkeeper has saved against him since West Ham's Lukasz Fabianski in August.
ARSENAL STATS: A win would give the Gunners 16 away points - as many as they claimed in total on the road last season (W4, D4, L11). The Gunners are unbeaten in their last 12 league games (W9, D3), and 19 matches in all competitions (W15, D4).
MANCHESTER UNITED STATS: United have conceded 23 goals in their opening 14 Premier League games - only the bottom five (prior to the latest round of matches) have a worse record, last season it took the Red Devils until 10 March - and 30 matches - until they conceded 23 league goals. Despite this, out of 44 games at Old Trafford Manchester United have only lost 4.
MANCHESTER UNITED STATS: The 82 most recent league and cup encounters had featured one or both of Sir Alex Ferguson and Arsene Wenger. Manchester United are unbeaten in 11 home league matches against Arsenal since September 2006 (W8, D3).
ARSENAL XI: Leno, Bellerin, Sokratis, Mustafi, Holding, Kolasinac, Torreira, Guendouzi, Ramsey, Iwobi, Aubameyang.
MANCHESTER UNITED XI: De Gea, Dalot, Bailly, Smalling, Rojo, Darmian, Herrera, Matic, Lingard, Rashford, Martial.
Arsenal have arrived!
An iconic rivalry.
We're under the floodlights at Manchester United's iconic Old Trafford stadium, here's a quick look around the 76,962 capacity stadium.
Good evening and a very warm welcome to all who are joining us tonight. It's a huge game, Manchester United v Arsenal, Mourinho v Emery and eighth against fourth. Team news should be in shortly.