If anyone has the balls to actually test their defence I think they will look susceptible. The Terry/Cahil partnership is overrated as demonstrated against Everton, and the minute it comes up against a decent side especially in Europe then both will struggle.
They've yet to have their customary wobble. I remember they looked invincible at the beginning of one year (2011?) and the press (those London based mostly) said that they ought to be given the title in November . They in the end were caught by United.
I am not saying United will catch them if they falter. I think it will be city who will likely benefit from any Chelsea wobble.
