Fabio Borini’s late penalty earned Sunderland a 2-1 win, but it was not the main talking point.
The penalty did, though, spark the key talking point—which involved Mourinho’s assistant Rui Faria.
Borini’s penalty was awarded by referee Mike Dean for a foul on Jozy Altidore.
The award has divided opinion; even Sunderland boss Gus Poyet was not convinced of its legitimacy.
Poyet: "If it was against me and I lost a game because of a penalty I would be fuming - that's for sure."— Dan Levene (@BluesChronicle) April 19, 2014
With the benefit of multiple slo-mo replays, didn't think Azpilicueta on Altidore was a pen.— Oliver Holt (@OllieHolt22) April 19, 2014
Faria was absolutely certain it should not have been awarded. He made his feelings known to the fourth official, which prompted referee Dean to make his way to the technical area to order Faria to the stands.
At that point, Faria lost his composure and was mouthing at Dean and had to be pulled away by Mourinho.
Mourinho came into the game protecting a 77-game unbeaten home record in the Premier League.
It was a Sunderland side scrapping for their lives that took the scalp, but the antics of Faria on the touchline will command more headlines than you would want to see.
Mourino refused to answer any questions at his press conference, but he did put the focus on Dean in his brief appearance.
I want to congratulate [referee] Mike Dean. I think his performance was unbelievable and when referees have unbelievable performances I think it's fair, as managers, we give them this. It was a fantastic performance, he came here with one objective, the objective to make a fantastic performance, and he did that.