Who has given Novak Djokovic the most trouble at majors in recent years? Stan Wawrinka. He proved it again by downing the world No. 1 in the US Open final.
원문출처 : http://www.cnn.com/2016/09/11/tennis/wawrinka-djokovic-us-open-final-tennis/index.html
원문출처 : http://www.cnn.com/2016/09/11/tennis/wawrinka-djokovic-us-open-final-tennis/index.html