It was struck with such unerring accuracy that it belonged in a coaching academy, a masterclass in target practice from 20 yards when he hit the West Brom midfielder’s bonce.
The result left referee Mike Jones with little option but to send off Fabregas for violent conduct. It was a daft thing for Fabregas to do.
Chelsea were a goal down and a man down after that, on the way to only their third defeat in the league this season after two goals from Saido Berahino and a beauty from Chris Brunt confirmed this famous West Brom win.
Fabregas brought back memories of the day when a youth team player at West Ham’s Chadwell Heath training ground was caught on camera hitting Harry Redknapp on the head as part of a dare.
The result here was a red card, an act of stupidity that was brought about by the man boiling up in Chelsea’s No19 shirt following a six game absence from the team because of a hamstring injury.
Jose Mourinho admitted that Diego Costa had begged him to play, pulling on the Chelsea for the first time since they were confirmed as champions of England. Self-discipline is not his strong point.