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File:2014-11-12 2014 ATP World Tour Finals Novak Djokovic forehand by Michael Frey.jpg - Wikimedia Commons
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Novak Djokovic Wins 90th Career Title Over Tsitsipas, Looks Like Player To Beat At World Tour Finals
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Imperious Novak Djokovic thrashes Kei Nishikori to kick off ATP World Tour Finals | Tennis | Sport | Express.co.uk
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