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Sixth seed Denis Istomin came from a set down to progress to the second round of the Kremlin Cup | Tennis News | Sky Sports
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Healthy and confident Nadal dismisses Istomin - Official Site of the 2023 US Open Tennis Championships - A USTA Event
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Novak Djokovic's defeat by Denis Istomin in Australian Open is 'biggest upset in decade,' claims John McEnroe - Mirror Online
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Rafael Nadal vs. Denis Istomin: Score and Reaction from 2016 US Open | News, Scores, Highlights, Stats, and Rumors | Bleacher Report
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French Open: Roger Federer marks return to Grand Slam tennis with crushing win over Denis Istomin - India Today
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Stunner Down Under: Novak Djokovic loses to Denis Istomin in second round of Australian Open – Orange County Register
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Who is Denis Istomin? World number 117 who dumped Novak Djokovic out of the Australian Open | IBTimes UK
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Who is Denis Istomin? Novak Djokovic conqueror at Australian Open - here's what we know | The Irish Sun
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Denis Istomin ruled out for Uzbekistan in Davis Cup encounter against India | Tennis News - Hindustan Times
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