Australian Open 2014: Li Na advances to semifinals

   
Azarenka, who is attempting to win her third consecutive title here, plays her quarterfinal match against Agnieszka Radwanska on Wednesday. Simona Halep will play Dominika Cibulkova, who beat Maria Sharapova in the fourth round, in another quarterfinal on the same day.
   
Later Tuesday, No. 3 David Ferrer played No. 7 Tomas Berdych in the first men's quarterfinal. In a night match on Rod Laver Arena, Novak Djokovic continues his quest for a fourth consecutive Australian Open title with a quarterfinal match against No. 8 Stanislas Wawrinka.
   
The other half of the men's draw plays its quarterfinals on Wednesday when top-ranked Rafael Nadal takes on Grigor Dimitrov and Wimbledon champion Andy Murray plays 17-time Grand Slam champion Roger Federer.