Barcelona could be in trouble after supporters sang 'Cristiano come out of the closet' to Real Madrid striker Ronaldo during Sunday's El Clasico.
The chants from supporters behind the goal were drowned out by whistles from the remainder of the 98,000 supporters inside the Nou Camp but Spanish La Liga chief Javier Tebas could still take action.
La Liga is keen to clamp down on anything that could be interpreted as homophobic behaviour at stadiums and this is not the first time Ronaldo has been targeted.
After Real Madrid beat Atletico Madrid in the final derby at the Vicente Calderon two weeks ago supporters sung the same song.
In the same match, Atletico midfielder Koke was accused of a verbal homophobic attack on Ronaldo.