This weekend a global audience of hundreds of millions will watch one of sport's fiercest rivalries.
Barcelona host rivals Real Madrid as two of world football's giants meet in La Liga for the first time this season.
Barca lead Real by nine points and the visitors have ex-Spurs boss Juande Ramos at the helm for his first league game since replacing the sacked Bernd Schuster.
BBC Sport's Jonathan Stevenson examines the history of the game dubbed 'El Clasico'.
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