BARCELONA president Joan Laporta will allegedly consider asking for El Clasico to be replayed after reviewing footage of Lamine Yamal's "ghost goal" against Real Madrid.
Xavi's side suffered a 3-2 defeat to Los Blancos on Sunday, leaving their La Liga title hopes hanging by a thread.
Andreas Christensen broke the deadlock just six minutes into the match before Vinicius Junior equalised from the penalty spot.
Teen superstar Yamal then thought he'd fired Barcelona ahead, but his goal was not given after the referee claimed the ball had not fully crossed the line.
Xavi claimed it was an "injustice" and "unfair" that his team went on to lose.
He said: "We can’t control them. These are refereeing actions. I think the team is doing very well, we competed very well, we were better than Real on their own pitch and I think we deserved the three points in every way.
"My feeling today is one of maximum injustice. Goes without saying, everyone saw it.
"My feeling is that today’s match was not fair."
Barcelona chief Laporta has now called for the Technical Committee of Referees to publish the footage, images and audio from the incident.
He said: "As president of FC Barcelona, I want to convey the dissatisfaction caused by the fact that one day after one of the most important matches on the world calendar, the misuse of a tool such as VAR is setting our agenda.
"As you know, I have never been a great defender of VAR because I believe that, as it is applied, it takes away spontaneity from football.
"But what I am in favour of is that, since we have it, it should always be used to avoid errors that could lead to unfair decisions.
"With this appearance that I am making, I not only want to reflect the discomfort of the Barcelona fans due to the
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