Juan Mata admits Manchester United's title tilt is over.
United are now 15 points off the pace.
"It is a difficult question but it will be between Arsenal, Chelsea and Manchester City," Mata said.
"Unfortunately we are too far away. Other seasons Manchester United used to fight for the tittles but this year we are going to fight to get a place in the next Champions League.
"Obviously Chelsea, Arsenal and Manchester City are the favourites to win, they have been the most consistent during the first part of the season.
"Chelsea's latest victory against Manchester City has been very important, because winning at the Etihad is a boost but we will see what happens at the end."