The sport's European governing body UEFA and Marseille have launched investigations into the incident which led to the defender's dismissal for violent conduct before kick-off.UEFA's Control, Ethics and Disciplinary Body will discuss the case at its next meeting on November 10.Under the governing body's rules for misconduct of players and officials, Evra is potentially facing a minimum five-match ban.A statement on Marseille's website said: "A professional player must keep his cool, face provocations and insults, as hard and unjustified as they are.