Sub Sanchez struck winner with late header
Man Utd had gone four matches without a win
Newcastle remain without a win all season
Magpies had led 2-0 at the break - increasing pressure on Mourinho
Man Utd 3-2 Newcastle
Former Manchester United captain Rio Ferdinand on BT Sport: "Great result in the end, they showed character.
"It's exactly what we wanted from Manchester United today - desire. Today we saw Jose Mourinho can get something out of this dressing room and they will work for him. They were fantastic in that second half."
Man Utd 3-2 Newcastle
John Anderson
Former Newcastle defender on BBC Newcastle
2-0 is a very dangerous scoreline because the next goal is massive. United got it and it gave them belief to go on and get the win.
We had the belief we were better in the first half, but United got the flea in the ear and showed more hunger after the break.
Man Utd 3-2 Newcastle
'Remember that game when Mourinho took Eric Bailly off after 15 minutes, played McTominay, Matic and Pogba in defence and United came from 2-0 down to win?'
I think a fair few of those inside Old Trafford will remember this day for a while. Paul Pogba hands his shirt to a lad in the front row.
#bbcfootball or 81111 on text (UK only)
And, breathe.
Lewis: Starting to think we should start every game 2-0 down!
David: Mourinho signs new contract for further 3 years.
Thomas: Easy to see why NUFC are down at the bottom,,even at 2-0 they didn't look like they believed they could win this game. They have a long season ahead of them
'Glory, glory Man United' might be pushing it but that's the tune as Jose Mourinho strides with purpose down the tunnel, applauding the fans as he goes.
Rafa Benitez trudges on to the pitch in comparison. Did his side pay for their approach in the second half? Manchester United were a shambles at the back.
Image source, ReutersMan Utd 3-2 Newcastle
2-0 down and heading for the sack after 10 minutes?
Manchester United turn it around and win. What a game!
Image source, Reuters
Dan Roan
BBC Sports editor
United’s players have come to their manager’s rescue when he needed them like never before. Has the much maligned Sanchez just delivered Mourinho’s Mark Robins moment? Or merely delayed the inevitable? Either way, a comeback to galvanise Old Trafford and lift some of the gloom
Man Utd 3-2 Newcastle
It was Ashley Young who served up the assist for that third Manchester United goal, for fans of such details.
Bonkers, bonkers game.
Text 81111
Am I crazy to think this is for the best? Us Newcastle fans have had enough. Rafa and Ashley need to leave. Bring Moyes or Pulis in to right the ship.
Robbie, York
Man Utd 3-2 Newcastle
Announce Mourinho contract extension.
Man Utd 3-2 Newcastle
Simon Stone
BBC Sport at Old Trafford
This has come straight out of the Sir Alex Ferguson playlist.
Old Trafford has erupted. Jose Mourinho's name is being sung.
What a game.
Man Utd 3-2 Newcastle
We told you, Fergie time...
Rachel: Alexis Sanchez in Alex Ferguson time.
David: amazing.......just like the good old days
Mark: Did they swap Mourinho for Fergie at half-time?
Image source, ReutersMan Utd 3-2 Newcastle
FIVE minutes have been added on. Mike Ashley and Ed Woodward wear similar faces in the stands.
Man Utd 3-2 Newcastle
John Anderson
Former Newcastle defender on BBC Newcastle
Everything United have done in this second half has been quicker and more accurate. It's a great ball whipped in and it's a good header which Alexis Sanchez has attacked well.
Man Utd 3-2 Newcastle
Jose Mourinho's name rings down from the stands now. You have to give him credit for this second half display, as bonkers as his team selection may be at times...
Alexis Sanchez
Would you believe it?! Of course you would!
A script from the Old Trafford archives has been dusted down and it's Alexis Sanchez who has the best speaking part!
Newcastle are just camped in, no pressure on the cross and when it comes in there are three men in red waiting to head it home. Sanchez is the man who applies the touch. Old Trafford roars...
Image source, PAMan Utd 2-2 Newcastle
Last minute of normal time.
Nothing about this has been normal.
Man Utd 2-2 Newcastle
Ashley Young on the overlap, his cross is cleared. Ayoze Perez is replaced by Joselu.
Two minutes remaining...
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Mourinho was just the distraction...
Chris: Twist in the tale, United win 3-2 and Benitez gets the sack!
Momodu: Anything to play for? The badge? Your pride? The Manager? Oh maybe the fantastic old Trafford fans?
Image source, AFPMan Utd 2-2 Newcastle
Dreadful ball, given straight back to Manchester United. But Romelu Lukaku can only chip a cross into the arms of Martin Dubravka.
Who's going to get a winner then?