Blackburn have admitted a charge of failing to control their players following a mass confrontation during their clash against Chelsea at Ewood Park on February 2.
Chelsea have denied the same charge and both clubs have requested personal hearings to argue their cases.
The FA charges ensued after the bad-tempered match which was marred by four separate fracas.
These started with the melee which followed Paul Dickov's late challenge on Petr Cech as he tried to reach the rebound from a penalty saved by the Chelsea goalkeeper.
The FA's website reported: "Blackburn Rovers have admitted a breach of FA rule E22a for failing to ensure that their players conducted themselves in an orderly fashion. Chelsea have denied the same charge."
