1 / 500

Tennis - Dimitrov dumps Wawrinka out in Cincinnati

(FILES) This file photo taken on June 03, 2013 shows Switzerland's Stanislas Wawrinka being treated by a medic during a French tennis Open round of 16 match against France's Richard Gasquet at the Roland Garros stadium in Paris.World number four Stan Wawrinka withdrew from the Rio Olympics with a back injury on August 02, 2016, dealing another body blow to the tennis tournament which has been hit by a series of high-profile pull-outs. The 31-year-old is the third Swiss player to withdraw after Roger Federer and Belinda Bencic who also scratched from the event through injury. (AFP Photo/PATRICK KOVARIK)

Roger Federer

Swiss tennis star