Luis Suarez has accepted a charge of violent conduct for biting Chelsea's Branislav Ivanovic.
The Football Association has confirmed the Liverpool striker has pleaded guilty and an independent regulatory commission will now meet via video conference to decide on his punishment.
Suarez could face a lengthy ban but has denied a claim from the FA that a standard three-match suspension is "clearly insufficient".
A statement from the FA read: "Luis Suarez has today accepted a charge of violent conduct, following an incident with Chelsea's Branislav Ivanovic in Sunday's fixture at Anfield.
"However, Suarez has denied the FA's claim that the standard punishment of three matches is clearly insufficient for this offence.
"The incident was not seen by the match officials and has therefore been retrospectively reviewed."