By Oliver Todd Follow @@oliver_todd The season hasn't even started yet and the world is already talking about the latest Barcelona and Real Madrid spat. But this time the Catalan club weren't even involved - in fact, the bad feelings came about in a pre-season match involving Real and a former Barca star. Roma's Seydou Keita refused to shake Portugal defender Pepe's hand and threw a water bottle at him - all before the kick-off of a friendly! Flashpoint: Seydou Keita (second left) withdraws his hand from Pepe's reach (fourth left) as he walks down the line of Real Madrid players
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Mali midfielder played for Barcelona for four years until 2012
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It looked like the El Clasico rivalry reared its head on Roma's US Tour
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Keita refused to shake Pepe's hand during the pre match pleasantries
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He then lobbed a bottle at the tough defender - before the game started!
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Fourth official claimed Pepe had spat at the 34-year-old
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Keita said he turned down Real to join their fierce rivals Barca
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He accused Pepe of calling him a monkey during a clash in 2011
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El Clasico games have turned ugly in recent years as rivalry hots up
Impact: @placeholder's team-mates try to pull him away (bottom centre) after Madrid players take issue with his actions, but he goes a step further