Chelsea have been handed 74 charges by the Football Association.
The charges relate to alleged breaches of the FA’s agent regulations and third-party investment in players.
The FA said the charges span the period between 2009 and 2022, when the club were owned by Russian billionaire Roman Abramovich, and primarily relate to events which occurred between the 2010/11 and 2015/16 seasons.
The FA said the west London club had until September 19 to respond to the charges.
An FA statement said: “The Football Association has today charged Chelsea FC with breaches of Regulations J1 and C2 of The FA Football Agents Regulations, Regulations A2 and A3 of The FA Regulations on Working with Intermediaries, and Regulations A1 and B3 of The FA Third Party Investment in Players Regulations.
“In total, 74 charges have been brought against Chelsea FC. The conduct that is the subject of the charges ranges from 2009 to 2022 and primarily relates to events which occurred between the 2010/11 to 2015/16 playing seasons.
“Chelsea FC has until 19 September 2025 to respond.”
Chelsea shortly responded to the FA’s announcement with a club statement, which revealed they had “self-reported” to the FA over the alleged charges.
The Blues also expressed its “gratitude” to the FA and hope the matter will be concluded “as swiftly as possible”.
A club statement said: “Chelsea FC is pleased to confirm that its engagement with The FA concerning matters that were self-reported by the club is now reaching a conclusion.
“The club’s ownership group completed its purchase of the club on 30 May 2022. During a thorough due diligence process prior to completion of the purchase, the ownership group became aware of potentially incomplete financial reporting concerning historical transactions and other potential breaches of FA rules. Immediately upon the completion of the purchase, the Club self-reported these matters to all relevant regulators, including The FA.
“The club has demonstrated unprecedented transparency during this process, including by giving comprehensive access to the club’s files and historical data. We will continue working collaboratively with The FA to conclude this matter as swiftly as possible. We wish to place on record our gratitude to The FA for their engagement with the club on this complex case, the focus of which has been on matters that took place over a decade ago.”