And so the pendulum swings again. From dire to delightful in the space of three days, the riddle of this Chelsea squad is no closer to being solved but the pressure on Mauricio Pochettino has certainly eased, if only for a while.
This was a fine performance. Better than fine, actually – it was excellent. They were fast, they were precise, they were tight at the back and they were dynamic on the ball. They fought and they cared and they carried themselves into the fifth round of FA Cup at a canter against a very good team.