"It gives us the belief we can come back, but what kind of impact it will have on Chelsea, I do not know. It was a massive win for us. To lose would have put us 13 points away and that would have been too much.
"It was a test of character and we came here with perhaps not the needed level of confidence - but we have shown that we have character.
"We were unlucky to be 1-0 down at half-time and slowly moved on top and won the battle in the middle of the park.
"I am a very, very happy man tonight and we have now beaten Manchester United and Chelsea in convincing way. It is still hard to win the title, but not impossible. Now it is down to our desire to win in the coming months.
"We are an intelligent team, but want to come back with humility, work hard and we have learned now we need focus in every game no matter who we play."