Chelsea boss Jose Mourinho says his side were "phenomenal" during the month of April.
The Blues came from behind to battle past Leicester City on Wednesday night to open a 13-point gap at the top of the Premier League table with only four games left.
And they will be crowned Champions if they beat Crystal Palace at Stamford Bridge on Sunday.
"In the first half they defended well and tried to score a goal on the counter-attack which they did," Mourinho said.
"It was a difficult half against a very good team, who were very well organised defensively, who pressed very well and closed spaces, and who were very aggressive with the way they play with the ball.
"In the second half the early goal was important. After that we were completely under control.
"We played so well, so fluidly, that the goal had to arrive sooner or later. The boys did fantastically.
"April was the month people were waiting for Chelsea to sleep, to lose a game.
"It was a month with problems, without Diego Costa and Remy, with only Didier and Oscar playing as strikers, and it was exactly the month where we were phenomenal: tactically phenomenal, the team spirit, the way we defended, the way we were clinical in our goals, the stability we showed in every game.
"We played five matches in April; we won everything and drew with Arsenal. I am so happy. I just need three more points to celebrate."