It was Moses who distributed the picture of Chelsea rejoicing. David Luiz and Eden Hazard are others who will have taken special pleasure from seeing four put past their former manager. But the main thrill, of course, was the remarkable turnaround since the defeats by ­Arsenal and Liverpool in eight ­ominous days in September.

“You know sometimes you need to lose the game to wake up. The Arsenal game was a wake-up call for us,” says Nemanja Matic, whose central-midfield partnership with N’Golo Kanté is starting to work so well.