Sofiane Feghouli can play in West Ham's FA Cup clash with Manchester City on Friday after the club won their appeal against his controversial sending-off against Manchester United.
Referee Mike Dean's decision to send off West Ham midfielder Feghouli in the 15th minute was comfortably the biggest talking point of the evening.
Replays showed the 35-year-old Swede was in an offside position, but the goal was allowed to stand - a source of further annoyance for West Ham and their manager Slaven Bilic.
Next up for United is an FA Cup third round tie against Reading at the weekend followed by the first leg of an EFL Cup semi-final against Hull City - two opportunities for silverware in Mourinho's first season.
As a former resident of the Wirral, Dean was previously regarded as too much of a local to referee a Merseyside derby and had not even taken charge of a game involving either Liverpool or Everton for 10 years before last month.
"I love my group so I'm really happy".
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The Hammers boss said: "The red card was so early and it had a major impact on the game".
When asked about the red card, Mourinho responded: "I don't make anything of it". We have a very fit squad and I think we need everyone because we have a lot of games. At 19, he has enough time to learn the tricks of the game in the future but with huge potential and high confidence, he deserves to play regularly and Mourinho should give him more time on the field to help him become a better player and make Manchester United even stronger. He got the ball, OK, but that was risky.
"The age that they're allowed to keep refereeing at the top level - Mike's almost 49 - I just feel the game has to have younger referees. I can be angry during the game but I know it's not deliberate".
Mourinho preferred to focus on the Premier League's scheduling. The more times I've seen it, it's the other way round.
At least you could have banter with players, no matter what they were like.
"He's a winning manager, he has shown that all his career and he is at the ideal place at the biggest club in England and one of the most successful clubs in the world, so we are lucky to have him and I think he is very happy with the squad and the way we are working for him".