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Roger Federer Upset by Stefanos Tsitsipas in 2019 Australian Open Round of 16 | News, Scores, Highlights, Stats, and Rumors | Bleacher Report
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Stefanos Tsitsipas stuns Roger Federer in four-set Australian Open thriller | Australian Open 2019 | The Guardian
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Stefanos Tsitsipas stuns defending champion Roger Federer at Australian Open to reach quarter-finals
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Roger Federer: Stefanos Tsitsipas opens up on 'magical' Australian Open moment | Tennis | Sport | Express.co.uk
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Australian Open 2019: Stefanos Tsitsipas leads 'Next Gen' charge against Roger Federer | Sports News,The Indian Express
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Australian Open 2019: Stefanos Tsitsipas apologises for 'really bad' expletive-laden rant at umpire | The Independent | The Independent
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