Chelsea boss Avram Grant admits their 1-1 draw with Wigan Athletic last night was a major blow to their title hopes.
Michael Essien looked to have earned the hosts three vital points with a 55th-minute strike but Emile Heskey pounced in added time to put a massive dent in Chelsea's title hopes.
United could even win the title at Stamford Bridge if results go their way in the interim.
"We need to win the games against Everton and Manchester United," admitted the Chelsea boss. "If not, it will be more difficult.
"We are still in it and we will keep on fighting but we need one more bad result off Manchester United.
"The result did not help us today but I thought the second half was one of our best performances from the footballing point of view.
"Every three or four minutes we created chances but their goalkeeper gave an excellent performance. This is football though; when you don't score the other team does.
"We know at some stage you can lose the points but we didn't want it to happen today.
"First half we didn't play good but it was one of our best performances in the second half but you need to score a second goal.
"It is very disappointing. The fans need to respect the football we played even though we didn't win the game.
"We have played good football in many games and created a lot of chances but we don't use them so much."
