Portuguese club Benfica lodged the complaint following an incident in the 82nd minute of their Champions League match where Valverde appeared to punch Benfica's Samuel Dahl. The Portuguese side claims Valverde's swinging arm constituted violent misconduct that deserved a red card, but the incident was not reviewed by VAR officials.
This latest complaint adds to the growing tension between the two clubs following previous incidents including racist allegations and controversial comments from Jose Mourinho. The complaint is unlikely to affect Valverde's participation in the second leg, which promises to be highly charged.