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Roger Federer vs Kei Nishikori AS IT HAPPENED: Federer suffers SHOCK straight-sets defeat | Tennis | Sport | Express.co.uk
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Roger Federer picks up rare code violation as he opens ATP Finals with straight-sets defeat to Kei Nishikori
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Tennis news - Roger Federer left bemused by umpire after Kei Nishikori defeat at ATP Finals - Eurosport
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Roger Federer v Kei Nishikori: ATP World Tour Finals – as it happened | ATP World Tour Finals | The Guardian
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