Drama unfolded at Stamford Bridge when Chelsea technical assistant Marco Ianni celebrated in front of Mourinho.
The assistant had fist-pumped in Jose's direction despite Mourinho vowing before the kick off of the match that he would not celebrate at the bridge because of the huge respects he has for Chelsea fans.
The irked Manchester United boss jumped from his seat and was restrained by stewards and his staff as he tried to reach Ianni to give him a taste of his own medicine.
Chelsea coach,Sarri, apologized for the uncalled for behavior by his assistant.
"It is not my reaction, it is Sarri's assistant. He was very impolite but Sarri took care of the situation. They have both apologised to me. I accept. For me, the story is over," Mourinho saidto the media when asked about his reaction towards the end of the match.
The coach watched helplessly as The Blues' Ross Barkley netted an equalizer in the 96th minute.
Chelsea had comfortably controlled in the the first half which ended in a 1-0 win - the goal scored by Rudiger.
They however lost the grip allowing Martial to score two goals for Manchester united in the second half. Barkley late equalizer saw the duo gain one point each from the Bridge.
Chelsea maintain their unbeaten league start as Manchester United maintain just one clean sheet in their nine Premier League matches this season. Chelsea host Bate Borisov in the Europa League on Thursday while the latter will face Juventus at Old Trafford on Tuesday.