Valencia have opened disciplinary charges against Miguel and Manuel Fernandes.
The charges relate to the players' reported involvement in a nightclub incident in which two police officers were allegedly attacked.
Valencia vice president Rafael Salom also told Canal 7 that Miguel - reportedly targeted by Chelsea - will be charged for his failure to attend a physiotherapy session when injured.
Fernandes, who joined Everton on loan last month, is also awaiting trial to answer a charge of 'resisting authority' during the incident on 4th January.
The players' punishments are set to be announced on 12th February.