Barcelona defender Gerard Pique faces a potential sanction after he accused a referee of giving him a "premeditated" red card at the weekend.
The head of the Refereeing Technical Committee said it would lodge a complaint against Pique's comments with the Spanish football association's competition committee.
"I understand that your blood can boil but sportsmen have to have respect for each other. It affects the refereeing body and obviously we will lodge a complaint."
"In the break I told the referee it was a penalty on Keita and he remembered it. I have the feeling that there was premeditation," the 25-year-old defender charged.
Despite the win, Barcelona remain 10 points behind league leaders Real Madrid who crushed Espanyol 5-0 on Sunday. Barca coach Pep Guardiola has admitted they have "very little chance of catching Madrid".
Source: AFP Global Edition