Stefanos Tsitsipas knocked out of US Open by Swiss qualifier, Novak Djokovic through in straight sets - ABC News
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Novak Djokovic marks return to tennis with dominating back-to-back wins in Laver Cup | Tennis News, Times Now
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Novak Djokovic of Serbia, first seed, reacts after losing a tie-breaker poing to Roger Federer of Switzerland, third seed, in the first set during their semifinal match at the U.S. Open held
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