After one of the most surprising tennis seasons of all time, who will take home the season-ending ATP World Tour Finals title?
원문출처 : http://www.cnn.com/2017/11/09/tennis/atp-world-tour-finals-london-roger-federer-rafa-nadal/index.html
원문출처 : http://www.cnn.com/2017/11/09/tennis/atp-world-tour-finals-london-roger-federer-rafa-nadal/index.html