Everton manager Carlo Ancelotti saw red after his side were denied a last-gasp winner against Manchester United due to what Dominic Calvert-Lewin called a "disaster" of a VAR decision.
Yesterday's Premier League encounter ended 1-1 at Goodison Park, where the match ended as manically as it had began.
Calvert-Lewin gave Everton a third-minute lead when blocking David De Gea's lackadaisical clearance, before opposite number Jordan Pickford's poor positioning allowed Bruno Fernandes to level.
The England goalkeeper made amends with a superb stop from substitute Odion Ighalo at the death and De Gea pulled off a fine save of his own before Calvert-Lewin sent Goodison Park wild with what appeared to be a stoppage-time winner.
But a seated Gylfi Sigurdsson was ruled offside by video assistant referee Jon Moss when the shot deflected in off Harry Maguire and incandescent Everton boss Ancelotti was given a red card at full-time.
Calvert-Lewin was shown the contentious VAR decision moments before giving his post-match interview, with his immediate reaction being: "That is a disaster. Oh my gosh. He's not even obstructing the line of sight".
The Everton faithful made their feelings known at the stoppage-time decision and Ancelotti marched onto the field after the final whistle to remonstrate.
He was shown a red card by referee Chris Kavanagh for his remonstrations, before having a more civil conversation with the official once the emotions had settled.
"I ask for an explanation after the game," Ancelotti said. "There was a misunderstanding on the pitch, he sent me off and after that I spoke with him in the dressing room calmly.
"I want to keep the conversation private. Now he's going to do a report to the FA and we will see.
"For sure, I didn't misrespect to him but I can understand also for them the end of the game was really impressive, really exciting. A lot of decisions, a lot of important decision but I didn't misrespect.
"It can happen but we will see if I am banned or not.
"Honestly, it was a difficult decision. I think they check the position of Gylfi, that was offside.
"But in our opinion it didn't affect the vision of the goalkeeper. In their opinion it (did) affect the vision and the movement of the goalkeeper. "
Asked about the controversial conclusion, United manager Ole Gunnar Solskjaer said: "I have not spoken to (Ancelotti), just shook hands of course.
"It was drama towards the end.
"I don't 100 per cent know the rule but David said he was distracted by the boy in his sight.
"I probably wouldn't have been sent off after it was a goal, to put it that way, because you're just hoping, fingers crossed, that they made a decision that is pro you."
EVERTON: Pickford, Coleman (Sidibe, 28 mins), Keane, Holgate, Baines, Walcott (Bernard, 62 mins), Davies, Gomes (Kean, 82 mins), Sigurdsson, Richarlison, Calvert-Lewin. Unused subs: Virginia, Mina, Delph, Iwobi.
man utd: De Gea, Wan-Bissaka, Lindelof, Maguire, Shaw, Matic, Fred, McTominay (Mata, 72 mins), Fernandes, Greenwood (Ighalo, 72 mins), Martial (Williams, 89 mins). Unused subs: Romero, Bailly, Lingard, Andreas.
Referee: Chris Kavanagh
Man of the match: Bruno Fernandes
Match rating: 7/10
Manchester Utd 1