Chelsea weakness exposed again as Arsenal exploit key Enzo Maresca problem - A familiar problem keeps cropping up time and time again for the Blues - but what exactly is going wrong and how do they fix it?

Even those who detest Chelsea cannot deny the impact Maresca has had, which should send a clear message to Arteta. Maresca was correct in his evaluation of the fixture, as facing a manager in his fifth year at Arsenal is a challenge for a coach only four months into his role.