Real Madrid manager Jose Mourinho could get into trouble for his comments about Barcelona manager Pep Guardiola and the match referee from Thursday's Champions League semi-final at the Bernabeu.
Lionel Messi scored twice after Real had midfielder Pepe sent off in the 62nd minute, giving the Catalans a 2-0 first-leg lead ahead of next Tuesday's return at the Nou Camp.
Mourinho was sent to the stands for protesting the red card decision.
In the post-match press conference, Mourinho severely criticised the referee and insinuated that UEFA treated Barca favourably.
Barcelona are considering making a complaint to UEFA.
