Leaders Barcelona return to league action away to Valencia on Sunday after a typically charged El Clasico in the cup where Dani Alves claims he was subjected to racial abuse.
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With the league title seemingly out of sight, as Real Madrid trail Barcelona by 15 points, it means there is added incentive for Jose Mourinho's men to beat their arch-rivals in the semifinal of the Spanish Cup.
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The first leg ended in a 1-1 draw on Wednesday, but the aftermath was overshadowed by Barcelona's Brazilian defender Alves claiming he wa subjected to racial abuse at the Santiago Bernabeu.
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'' It is a shame, however you are feeling about the game people should be there to support their team and there are too many racist insults '' he said.
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'' Sadly it is a lost battle untily they take more drastic action then it will continue. I didn't think of walking off the pitch. This wasn't a one-off, it happens in a lot of stadiums ''.