Published: Oct 19, 2012 7:37 AM EDT
Updated: Oct 20, 2012 6:32 AM EDT

MOSCOW (AP) - Former No. 1 Caroline Wozniacki advanced to the semifinals of the Kremlin Cup by beating defending champion Dominika Cibulkova 6-2, 6-7 (1), 6-1 on Friday.

Wozniacki won four consecutive games in the first set and later took advantage of an ailing Cibulkova, who was playing with her right hip bandaged and took a medical timeout while trailing 2-1 in the third set.

In the men's tournament, Malek Jaziri beat Lukas Rosol of the Czech Republic 7-6 (5), 6-3 to become the first Tunisian to reach the semifinals at the ATP event.