Referencing that quarter-final clash, Mourinho said: "That game was totally controlled when we played with 11 players, and only the decision that made us play with 10 players gave Chelsea a chance to be dominant".
But which star players make the team of the week based on statistics? We've been very good at that this season, especially at home.
"I prefer to fight for the title instead of don't fight for the title and stay calm".
He said: "The pressure is normal. There will be more pressure on them, the closer they get to Chelsea also". We just have to do our job. If we win, we must be proud.
"But we work a lot with each other, and it's really a team work".
However, upcoming games for Chelsea are relatively easier compared with Tottenham.
Marcus Rashford opened the scoring for United, but in the build-up Ander Herrera appeared to control the ball with his hand, an incident which was missed by the referee. As a result, they have cut Chelsea's lead in the table to just four points.More news: Most Americans don't trust President Trump
Although the Blues won the reverse fixture 1-0 on November 20, 2016 when Middlesbrough were in the middle of the table and not now that they are fighting against relegation. We want to win the match because we want to pick up the FA Cup, it's one of our goals.
"The second reason is they are the leader".
Mousa Dembele set Tottenham on the way to victory with his first goal of the season and the in-form Son Heung-Min doubled their advantage soon after to put them in control.
"They are all very aware of where they need to be on the pitch and do it brilliantly well".
Marcos Alonso was unable to take part in the contest due to feeling unwell, but Luiz insists his absence on the left can not be blamed for destabilising the team.
Two years later, Liverpool moved five points clear of the pack with just three games left to play following a 3-2 win at Norwich in late April.