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Novak Djokovic of Serbia, right, and Stanislas Wawrinka of Switzerland take part in a training session
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Novak Djokovic secures year-end world number one spot as he beats Hubert Hurkacz to reach Paris Masters final - Eurosport
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Novak Djokovic Serbia Takes Part Training Session 2015 Shanghai Rolex – Stock Editorial Photo © ChinaImages #240984642
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Novak Djokovic of Serbia returns a shot to Roger Federer of Switzerland in the semi-finals of the men's singles during the 2014 Shanghai Rolex Masters Stock Photo - Alamy
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157 Masters Series Monte Carlo Rolex Masters Previews Stock Photos, High-Res Pictures, and Images - Getty Images
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