A three-man Disciplinary Committee of European Rugby Cup Ltd will consider a citing against Blues' flanker Dan Baugh on Monday 5 January.
Leinster Lions have alleged that Baugh was responsible for stamping and kicking an opponent's head in the Heineken Cup match at Cardiff Arms Park on 12 December.
Cardiff Blues' chief executive Robert Norster has already stated that the allegation will be vigorously contested at the hearing in Dublin, when Dan Baugh will have legal representation.