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Roger Federer into Australian Open final as Hyeon Chung retires hurt – as it happened | Australian Open 2018 | The Guardian
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Roger Federer ready for Marin Cilic holiday showdown after bittersweet Hyeon Chung win | Tennis News | Sky Sports
AusOpen on Twitter: "Hyeon Chung has retired from the match. Roger Federer is into the #AusOpen 2018 final. https://t.co/m1crvYFCdA" / Twitter
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Tennis - Australian Open 2018: Chung quits with blisters to send Federer to Melbourne final | MARCA in English
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