Ruben Amorim's Manchester United era hit a new low as they lost 1-0 to an Everton side playing over 75 minutes with 10 men after Idrissa Gueye's red card for striking team-mate Michael Keane.
In extraordinary scenes at Old Trafford, Gueye got into an argument with centre-back Keane early in the first half and replays showed the midfielder raise his hands to the Everton defender's face.
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RED CARD
Everton's Idrissa Gueye is given a red card against Man Utd after hitting his own team-mate Michael Keane
That should have allowed United complete;y control of the game - if anything it did the opposite. Amorim's side looked like the team with 10 men - and deservedly took the lead through Kiernan Dewsbury-Hall's stunner from distance.
The midfielder's solo run got him to the edge of the box before he fired past Senne Lammens' outstretched gloves and into the net - with more questions falling to a United goalkeeper this season.
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GOAL
Kiernan Dewsbury-Hall fires 10-man Everton ahead against Man Utd in their Premier League match at Old Trafford
United failed to take full advantage of their extra man in the first half, with their players booed off after their best chance was a Bruno Fernandes 30-yard strike which Jordan Pickford simply saved.
United - missing Benjamin Sesko and Matheus Cunha through injury - started the second half in a similar vein. Half-time substitute Mason Mount put two chances wide, while Bryan Mbeumo saw an effort saved by Pickford.
As United continued to toil - and Amorim refused to part from his 3-4-2-1 formation, Sky Sports' Gary Neville got frustrated by the minute on co-commentary.
"You have five at the back, why?" said Neville. "They still don't win the first ball or second ball. Embarrassing.
"The subs have taken him down a cul-de-sac. There's no agility or flexibility firstly from the coach, but also the players."
Player ratings
Man Utd: Lammens (4); Yoro (5), De Ligt (5), Shaw (3); Mazraoui (4), Casemiro (3), Fernandes (4), Dorgu (4); Amad (4), Zirkzee (3), Mbeumo (5)
Subs: Mount (4),
Everton: Pickford (9); Coleman (n/a), Tarkowski (8), Keane (8), Mykolenko (7); Gueye (1), Garner (7), Dewsbury-Hall (9); Ndiaye (8), Barry (8), Grealish (8)
Subs: O’Brien (7), Beto (n/a), Iroegbunam (n/a), McNel (n/a), Alcaraz (n/a)
Player of the Match: Kiernan Dewsbury-Hall
United almost found a way through when Joshua Zirkzee, starting his first United game for 225 days, forced Pickford into two wonder saves, before he then headed a Kobbie Mainoo cross wide.
More boos rang out at full-time as former United coach David Moyes got his first win at Old Trafford as a visiting manager. For Amorim, this is a massive low.
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