Mourinho took exception to the celebrations of one of Sarri's backroom staff, Marco Ianni, who ran in front of the Portuguese on the touchline, as he seemed set for a sweet victory over his old club after Anthony Martial scored twice to cancel out Antonio Rudiger's opener.
The United manager jumped from his seat and hurled himself towards the member of staff, clearly enraged, and a huge melee ensued by the tunnel, with staff, players and security all getting involved. "If you say before the game that one point at Stamford Bridge is a good result, it is so hard to win here".
"I think the players in that weekend we didn't sleep in the hotel, everyone stayed at his own house, and I think the players when they woke up in the morning, from what they read, because they read and follow social media, I think the pre-match was not easy for them", said Mourinho.
"I am not annoyed with anything".
"Of course I accept apologies and forget it, because I also made lots of mistakes in my career". Mourinho's post-match response? To walk onto the field and hold three fingers up to the home support, signifying the three Premier League titles he won across two spells in charge of Chelsea.
The goal galvanised the visitors and Martial made it two in the 73rd minute after a fine breakaway move between former Chelsea midfielder Mata and Marcus Rashford.
Given the circumstances, it was nearly a surprise that Mourinho calmed down quickly enough to shake Sarri's hand at full-time.
Whether he enjoys it or not, Mourinho is the guy who is always portrayed as the villain of the piece, but there was so much more to this game than the incident with Ianni and his reaction to the fans who once idolised him.
United's fans, however, will appreciate the efforts and intensity of their players, showing loud support for their manager as they witnessed his team finally show signs of life to build on the momentum of their comeback win against Newcastle United. "We conceded a goal that we should have stopped but we came back".
In the second half we managed to transform that on occasions in goals, in ambition, in free-flow play with good intensity, good passing, good quality. I will have to study the second half because I don't know why that happened. I think United are better than us in this kind of football.
"At this period of the season, one point more or one point less is the same, I want to play every match for three points", he said.
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