With her sister Serena advancing earlier, it will be their 23rd meeting in the women's tennis.
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Serena Williams of the United States of America hits a return to Caroline Wozniacki of Denmark during their semi-final match at the WTA Tour Championships in Doha, Qatar, Oct. 31, 2009. S. Williams won to the final, when Wozniacki retired midway through the match. |
The Williams sisters have already met in the Qatari capital this week, Serena winning a three-set scrap in their Maroon Group clash which was their 22nd career duel.