It was only a few minutes after his Australian Open victory over Rafael Nadal, but already Roger Federer was thinking about the future of the game he loves so dearly.
원문출처 : http://www.cnn.com/2017/01/31/tennis/roger-federer-rafael-nadal-tennis-rivalry/index.html
원문출처 : http://www.cnn.com/2017/01/31/tennis/roger-federer-rafael-nadal-tennis-rivalry/index.html