The ugly scenes prompted the Stamford Bridge club’s fifth charge of failing to control their players in 19 months, which brought with it the threat of a loss of points.
When the Football Association doled out their previous punishment to the Blues for such an offence, after May’s tetchy showdown with Tottenham, the governing body alluded to a graver sanction if there was a repeat offence.
As it was, Chelsea were fined a mere £100,000, considerably less than the £375,000 which was payable following the scuffles against Spurs, while City were hit with a £35,000 penalty.
A points deduction would have represented a huge blow to Chelsea, who returned to the summit of the Premier League with a gritty 1-0 victory over West Brom on Sunday.
Defender Cesar Azpilicueta, meanwhile, has committed his long-term future to Chelsea after signing a new three-and-a-half year contract which runs until 2020. The 27-year-old joined the Blues from Marseille in 2012 for £7m.
“Look back, it was a good piece of business for us,” said Chelsea boss Antonio Conte, whose side play Sunderland at the Stadium of Light on Wednesday. “Now, I think, his valuation is very high. He’s an important player who can play in different roles, so it was a good affair for the club.”
Conte, however, was forced to deny reports that skipper John Terry has been told he will not be offered a new deal when his current contract expires at the end of the season. He added: “That discussion has not taken place.”