http://www.telegraph.co.uk/sport/football/teams/real-madrid/11947292/El-Clasico-corruption-storm-as-linesman-told-to-favour-Real-Madrid-by-referee-in-La-Liga-clash-with-Barcelona.html

The match officials for one of the most famous fixtures in world football have not yet been confirmed but it is understood one of the pre-designated linesmen for the fixture was contacted by the pre-designated referee who told him that the league's refereeing committee was putting pressure on the officials to favour Los Blancos.

In a court filing published by Spanish radio station COPE on Wednesday, the official, whose identity is to remain a secret for fear of reprisals, claims pressure from the committee was put on the senior referee who is expected to take charge of the match on Nov 21 to handle the game in a manner that would "prejudice the interests of one of the clubs involved, Barcelona".

http://www.espnfc.us/spanish-primera-division/story/2676687/referee-told-to-back-madrid-in-barcelona-clasico-says-lawyer

A La Liga assistant referee has told anti-corruption officials he was pressured by the Technical Committee of Referees (CTA) to favour Real Madrid in the upcoming Clasico against Barcelona in November.

La Liga president Javier Tebas dismissed the accusations as "ridiculous," saying that "there is nothing prepared here for anyone."

Jacinto Vicente, the lawyer of the unnamed official, told Sport that a formal complaint has been made to the public prosecutor's office in Barcelona, with the assistant referee told to "prejudice the interests of one of the clubs, Barcelona."

http://www.sport-english.com/en/news/liga-bbva/sport-speak-jacinto-vicente-the-man-behind-the-complaint-4607827

Jacinto Vicente, the lawyer who has presented the case of pressure being put on officials for the Clasico, has explained in a phone call to sport what the process was of presenting the complaint to the public prosecutor's office regarding the threats to the game between FC Barcelona and Real Madrid.

"One person let me know about a referee that had a problem and wanted to talk with me. It's deducible that he is not from Barcelona (because if he was he would not have been chosen for the game). For a professional reason I had to go to Barcelona, where I met with him. He explained everything that had ocurred and wanted to go public with the pressure being put on him because it's the only way to clean up Spanish football and the only way to change a closed system," explained the lawyer.