Mourinho, though, praised the performance of 19-year-old forward Rashford and his team-mates for a dominant Old Trafford showing.
"I think that the impact was very tough today, but when you play at Old Trafford it is normal to have this type of impact against a really strong team as United. So it was very important and the kid played fantastically well". "Every game is going to get more and more hard; other teams are going to want it more and we will want it more, so we just have to go and get the results".
"We have to dust ourselves off and prepare for a huge semi-final, and then we go again with some important home games coming up".
"We have to react in the right way", he said.
The Italian said: "I think they deserved to win".
"They [United] showed more desire, more ambition, more motivation", he said, as reported by The Guardian.
And boss Conte pointed to what he felt have been contentious decisions against his side in matches with Stoke City, Crystal Palace and Bournemouth.More news: British teenager has legs amputated after F4 crash
"I have to keep working, performing and giving what the manager wants me to give".
"He was fantastic for us and we needed the outlet". For me if we were able to reach this target it would be a miracle.
"Actually he is better than quite good at the tactical side as we know more than anyone, but his inside knowledge of the Chelsea team was the killer on the day. We must have the same". Meanwhile, Spanish global Herrera played a key role in limiting the influence of Eden Hazard. "I want to finish higher than that", Young told British media.
"I was running with my hand next to my body".
'I think he is a very good in every part of the game, he has a very good shot, movement, speed. When United were without the ball, he was assigned to man-mark Eden Hazard - completely nullifying the threat from the Belgian for the entire match.
The Spain worldwide also contributed by doubling United's advantage with a deflected strike just four minutes after half-time. Defensively it was ideal, they didn't create any chances, and on the counter-attack we hurt them. I am happy, but I am not finished yet.
They remain in the driving seat and will face only one top-seven side - Everton - in their last six games, but Conte suggested his team can no longer be considered outright favourites.