MELBOURNE, Jan. 25 (UPI) -- Petra Kvitova and Maria Sharapova, who each can climb to No. 1 in the world women's rankings, advanced Wednesday to the semifinals of the Australian Open.
Kvitova, ranked No. 2 in the world, posted a 6-4, 6-4 win over Sara Errani in her quarterfinal Wednesday while Sharapova was a 6-2, 6-3 winner over Ekaterina Makarova.