Novak Djokovic and Serena Williams have both qualified for the Australian Open semifinals.
Djokovic will face 17-time grand slam winner Roger Federer and Serena Williams will face off Agnieszka Rad-wanska from Poland.
Williams had beaten Maria Sharapova in the quarterfinals.
Federer and Djokovic have played each other 44 times.
Djokovic had beaten Federer in the finals at Wimble-don and the U.S Open last year.
Source : Radio NZ
