Novak Djokovic gets 'uncomfortable' reception at behind closed doors Australian Open training session
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WATCH: Novak Djokovic defaulted from the US Open after hitting a ball into a line judge | OTB Sports
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HEAD Novak Djokovic Graphene 360 Speed Pro Tennis Racquet Bundled with Bag, String and Overgrip (Grip Size 4 1/4"), Racquets - Amazon Canada
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Novak Djokovic beats Tomas Berdych at ATP Finals, will finish year at top of rankings | National Post
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