im a united fan but i will try to give my honest opinion.
i think chelsea will struggle this season for a few reasons.
1)scolari has a lot to learn about the premier league..
2)essien is one of your best players, and i dont know if mikel is good enough to replace him while hes out
3)Ye are lacking something in attack. drogba is a great player, but i think anelka is past it. compared to our strikeforce, ye look light up front