But I am really happy with the team and the results, because the Manchester City and Liverpool results left us in the position of needing to win.
"He gave me, from the first day, a lot of confidence and he told me that I was going to be an important player for him".
The Reds' top scorer missed a golden opportunity against Anderlecht on Thursday night and was guilty of giving the ball away on a number of occasions.
"It is about that - we have to know each other better and better and go in the direction".
Victory lifted United to fifth place, four points below Manchester City, who occupy the fourth and final Champions League place, with a game in hand.
While, Chelsea's lead at the start of April was 10 points, two defeats in four league matches has seen Spurs - who have won seven straight top-flight games - eat into that advantage. He is not scoring enough goals.More news: United Nations peacekeepers who created child sex ring in Haiti were never punished
Mourinho also said that Wayne Rooney could be back on the bench for Thursday's game if he comes through training on Wednesday without any reaction from an ankle injury.
Tottenham, on the other hand, has the large task of beating Arsenal, Leicester City and West Ham.
The 19-year-old scored the opening goal in the 2-0 win at Old Trafford on Sunday and was a constant threat to the Blues defence after being selected up front ahead of Zlatan Ibrahimovic by Jose Mourinho.
Goals from Marcus Rashford and Ander Herrera sealed the win with Mourinho praising his players for their spirit and the way they executed his tactical plan. And the midfielder made Chelsea pay even further when he drove in a shot that deflected off Kurt Zouma and span high into the net in the 49th.
Alonso's absence, in particular, unbalanced Chelsea, which put in its worst performance since a 3-0 loss to Arsenal in September that forced manager Antonio Conte into a season-defining switch to a 3-4-3 formation.
United's unbeaten run in the league extended to 22 games.