Joe, if Chelsea continue to play the way they have the past few weeks you have nothing to worry about. The kids seem to have lost their confidence, Jorginho has returned to normal and Kepa needs to spend some time on the bench.
Arsenal were indeed a mess. WTF were they doing during the Kolasinac injury? Voluntarily playing with 10 men against a team like City? Arsenal fans had every reason to boo and leave early.