If 2016 was a season of memorable firsts in tennis, call 2017 the year of the comeback. Roger Federer, Maria Sharapova, Serena Williams and Nick Kyrgios -- and there are more -- are among those returning to the circuit after being sidelined for differing reasons.
원문출처 : http://www.cnn.com/2016/12/19/tennis/2017-tennis-federer-sharapova-serena-comebacks/index.html
원문출처 : http://www.cnn.com/2016/12/19/tennis/2017-tennis-federer-sharapova-serena-comebacks/index.html