Nishikori Dismisses Wawrinka In London Highlights

Watch highlights of Kei Nishikori blowing past Stan Wawrinka to start his 2016 Barclays ATP World Tour Finals, and Raven Klaasen and Rajeev Ram dismissing top seeds Pierre-Hugues Herbert and Nicolas Mahut. Watch live tennis at . Photo: Peter Staples / ATP World Tour