Belinda Bencic of Switzerland makes a backhand return to Li Na of China during their second round match at the Australian Open tennis championship in Melbourne, Australia, Wednesday, Jan. 15, 2014.(AP Photo/Aaron Favila)
Li Na of China makes a forehand return to Belinda Bencic of Switzerland during their second round match at the Australian Open tennis championship in Melbourne, Australia, Wednesday, Jan. 15, 2014.(AP Photo/Aaron Favila)
Li Na of China makes a forehand return to Ana Konjuh of Croatia during their first round match at the Australian Open tennis championship in Melbourne, Australia, Monday, Jan. 13, 2014.(AP Photo/Rick Rycroft)
Ana Konjuh of Croatia makes a backhand return to Li Na of China during their first round match at the Australian Open tennis championship in Melbourne, Australia, Monday, Jan. 13, 2014.(AP Photo/Rick Rycroft)
Li Na of China makes a forehand return to Ana Konjuh of Croatia during their first round match at the Australian Open tennis championship in Melbourne, Australia, Monday, Jan. 13, 2014.(AP Photo/Rick Rycroft)