Roger Federer believes going into the Australian Open with his lowest ranking since 2001 could play into his hands.
원문출처 : http://www.cnn.com/2017/01/10/tennis/roger-federer-australian-open/index.html
원문출처 : http://www.cnn.com/2017/01/10/tennis/roger-federer-australian-open/index.html