Nishikori Reflects On Opening London 2016 Victory Nov 14, 2016 Japanese Kei Nishikori gained revenge for his US Open defeat by Stan Wawrinka at the Barclays ATP World Tour Finals. Watch live tennis at tennistv.com. Tags: 2016 Barclays ATP World Tour Finals Interviews Kei Nishikori Share 0 Share on Facebook Tweet Tweet on Twitter +1 +1 on Google Plus