NUSA DUA, Indonesia -- Maria Jose Martinez Sanchez upset second-seeded Samantha Stosur of Australia 7-6 (4), 7-5 Friday to reach the semifinals of the Commonwealth Bank Tournament of Champions.
Martinez Sanchez will face Aravane Rezai of France.
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Top-seeded Marion Bartoli of France defeated Shahar Peer of Israel, 6-3, 6-2. Bartoli will play Kimiko Date Krumm of Japan, who advanced to the semifinals when Yanina Wickmayer withdrew because of a one-year doping suspension.
Wickmayer is accused of failing to report her whereabouts to drug-testing officials three times. The Belgian player said on her website she plans to appeal.
Sabine Lisicki of Germany defeated Melinda Czink of Hungary 6-2, 6-7 (1), 6-4. Vera Dushevina of Russia, who replaced Wickmayer in Group C, edged Anabel Medina Garrigues of Spain 2-6, 6-1, 7-5.
The top 10 women who won a WTA Tour event this season but didn't qualify for last week's WTA championships are participating in the round-robin tournament.
