"Lamine Yamal's disallowed goal in El Clásico? We will go to the final consequences, these abuses cannot happen," Barcelona president Joan Laporta said.
"There are 37 cameras in a game and it turns out that there is one that does not work and it is the one for the goal play," Laporta bemoaned.
Barca intends to drag the matter to court and force El Clasico to be replayed if they win. However, this is highly unlikely to happen as we've never seen that before in a top league in Europe.
That defeat in El Clasico all but knocked Barca out of the race for La Liga this season as Real Madrid needs just seven more points from six games to win it.
La Liga have insisted they will not install goal-line technology despite the controversy generated in the game.
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