Mourinho made his frustration known by letting out an undoubtedly cathartic cheer, jumping and fist-pumping the air, just as any manager celebrating a last minute victor would.
Should de Gea leave United?
"Without David [de Gea's] save, no winning goal", said Mourinho, in reference to his goalkeeper's goal line stop from Ulisses Garcia.
United fans cheered and there were chants of "We'll never die", but it was no cathartic release, even though their team are assured of reaching the last 16 of European football's premier tournament.
"I know that his agent is happy to do what the player wants and I also know that the board wants him to stay and they're working on that, so hopefully sooner or later they arrive into good conclusions".
" Let me send a message to my lovers and say that I played Champions League for 14 years and I qualified 14 times". "I won the Champions League".
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Marcos Rojo - yet to play a minute this term - is also absent for the United manager, who has made his frustration clear at the club's failure to reinforce the defence over the summer. And I said: 'Hell yeah I'm angry.
"But I think maybe it's better to have lots of holidays in Barbados and go to the television screens and touch the electronic dummies".
Mourinho has made six changes to the team which started the 0-0 draw against Crystal Palace, with Pogba's omission in favour of Fred the most high profile adjustment.
BT Sport host Gary Lineker asked who he would rather play for out of Klopp, Guardiola and Mourinho, and Ferdinand, without hesitation, replied: 'Pep.
And it appeared Mourinho was still in a spiky mood immediately after the game.
Mourinho's tendency to turn to Fellaini in times of need is part of a bigger problem; the Portuguese is blatantly failing to get the best out of his attacking talent.
"We don't score enough goals but is not about Marcus".