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Roger Federer: Juan Martin del Potro did something to anger Swiss star before Indian Wells | Tennis | Sport | Express.co.uk
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Juan Martin del Potro shocks Roger Federer at Indian Wells to inflict world No 1's first defeat of 2018 | The Independent | The Independent
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Roger Federer on Twitter: "What a battle today. Congrats on a fantastic tournament and match, @delpotrojuan https://t.co/bqf4LyL1B8" / Twitter
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Juan Martín del Potro beats Roger Federer at Indian Wells for first Masters title | Tennis | The Guardian
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