Japan’s Kei Nishikori returns to Switzerland’s Roger Federer during a singles group match during the ATP Tour tennis finals tournament at the O2 Arena in London, Britain, 19 November 2015. EPA/ANDY RAIN
Switzerland’s Roger Federer returns to Japan’s Kei Nishikori during a singles group match during the ATP Tour tennis finals tournament at the O2 Arena in London, Britain, 19 November 2015. EPA/ANDY RAIN
Britain’s Andy Murray trains ahead of his match wtth Switzerland’s Stanilas Wawrinka on Friday in a singles group match at the ATP Tour tennis finals tournament at the O2 Arena in London, Britain, 19 November 2015. EPA/ANDY RAIN
Serbia’s Novak Djokovic carries a huge training ball during a training session ahead of his match with Tomas Berdych during the ATP Tour tennis finals tournament at the O2 Arena in London, Britain, 19 November 2015. EPA/ANDY RAIN
Japan’s Kei Nishikori returns to Switzerland’s Roger Federer during a singles group match during the ATP Tour tennis finals tournament at the O2 Arena in London, Britain, 19 November 2015. EPA/ANDY RAIN
Switzerland’s Roger Federer returns to Japan’s Kei Nishikori during a singles group match during the ATP Tour tennis finals tournament at the O2 Arena in London, Britain, 19 November 2015. EPA/ANDY RAIN
Topics: 10sballs_com, Andy Murray, ATP Finals, ATP World Tour Finals, Kei Nishikori, London tennis, Novak Djokovic, Roger Federer, Sports, Tennis
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