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LIVE RANKINGS. Istomin falls down just before squaring off with Fanselow in Columbus Challenger - Tennis Tonic - News, Predictions, H2H, Live Scores, stats
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Who is Denis Istomin? Roger Federer's first round opponent at French Open 2021 who knocked Novak Djokovic out of Australian Open
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'Federer was the toughest opponent from the Big Three. He was...': Denis Istomin | Tennis News - Hindustan Times
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