Pundit Antonio Romero believes the provocation of Real Madrid attacker Vinicius Jr will continue.
Vinicius Jr was barracked by Mallorca fans during Sunday's defeat, while also being taunted by opposition players.
Romero said on Cadena SER: "We have seen the face of a madman in the stands saying barbarities and we have eaten the milonga that he cannot be identified.
"That is a problem. Then, I think that Vincius should follow another path, but he will to continue having problems on the field like the ones from the other day.
"They have realized that he is not mentally strong and they are going to go after him that way."