Is Chelsea The biggest MU's rival in the next season?

i think the title race will be closer this year but man u will win it cause chelsea will be losing drogba essien and kalou in january to the african cup

I alawys stand for Manchester United! but i dont know why Chelsea has paid nearly no money for importing their new players~ instance Ben-Haim joined Chelsea as free player.. i think MU could be more better in upcoming season, and i hope Rooney could get a brand new start in ManU as NO.10,which a number belongs to superstar!

Definitely they are going to be again the arch rivals for the manu team next season also in the premier ship.