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Feet of Novak Djokovic (SRB) in action at the US Open 2014 Championships in New York,USA Stock Photo - Alamy
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NEW YORK - SEPTEMBER 1, 2014: Six Times Grand Slam Champion Novak Djokovic Wears Custom Adidas Tennis Shoes During Match At US Open 2014 At Billie Jean King National Tennis Center In
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Novak Djokovic vs. Andy Murray: 2014 ATP World Tour Finals Exhibition Recap | News, Scores, Highlights, Stats, and Rumors | Bleacher Report
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Grand Slam Champion Novak Djokovic of Serbia Wears Custom Adidas Tennis Shoes during Match at US Open 2016 Editorial Image - Image of championship, billie: 89113285
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ATP World Tour Finals 2014: Andy Murray steps in as injured Roger Federer pulls out of final against Novak Djokovic in London | The Independent | The Independent
![Paris. 26th May, 2014. Novak Djokovic (R) of Serbia holds the umbrella with a ball boy as the rain halts play during his Men's Singles first round match against Joao Sousa of Paris. 26th May, 2014. Novak Djokovic (R) of Serbia holds the umbrella with a ball boy as the rain halts play during his Men's Singles first round match against Joao Sousa of](https://c8.alamy.com/comp/E18EPT/paris-26th-may-2014-novak-djokovic-of-serbia-hits-the-clay-off-his-E18EPT.jpg)