The Australian Open starts Monday in Melbourne . Rafael González makes his grand slam comeback . Serena Williams seeks a 19th career title . He became the first man outside tennis ' `` Big Four '' to win a major since Juan Martin del Potro in 2009 . Roger Federer returns with momentum after his win .
The Australian Open starts Monday in Melbourne . Rafael González makes his grand slam comeback . Serena Williams seeks a 19th career title . Roger Federer returns with momentum after his win .