Second-seeded Alize Cornet of France went out in the second round of the Luxembourg Open after losing 6-2, 6-3 to Kiki Bertens of the Netherlands on Wednesday.
Top-seeded Andrea Petkovic of Germany exited the Luxembourg Open in the first round on Tuesday, losing 6-4, 6-2 to Pauline Parmentier.
Ana Ivanovic pulled out of the Generali Ladies with a left hip injury on Wednesday, one day after receiving medical treatment during her first-round win over Pauline Parmentier of France.
Ana Ivanovic overcame a left thigh injury to beat Pauline Parmentier of France 6-3, 6-2 in the opening round of the Generali Ladies on Tuesday.
Lin Zhu of China advanced to the second round of the Guangzhou Open by beating sixth-seeded Roberta Vinci of Italy 6-3, 7-6 (7) Monday.
Eleventh-seeded John Isner reached the second round of the Western & Southern Open with a relatively easy 6-3, 6-4 win over Kevin Anderson on Monday night.
Elina Svitolina of Ukraine moved her Baku Cup title defense into the semifinals by dispatching Pauline Parmentier of France 6-4, 6-4 on Friday.
Top-seeded Sorana Cirstea of Romania took a 6-1, 6-1, 50-minute beating from Stefanie Voegele of Switzerland in the Baku Cup second round on Thursday.
Former champion Bojana Jovanovski of Serbia returned to the Baku Cup quarterfinals by beating Katarzyna Piter of Poland 6-3, 6-1 on Wednesday.
Third-seeded Alize Cornet defeated Pauline Parmentier 6-3, 6-4 in an all-French first-round match at the rain-drenched Nurnberger Versicherungscup on Tuesday.
Svetlana Kuznetsova lost to unseeded Kiki Bertens of the Netherlands 7-6 (6), 6-2, 7-5 in swirling wind Monday in the first round of the ASB Tennis Classic.
Top-seeded Sam Stosur of Australia moved into the Japan Open semifinals with a 6-2, 6-4 victory over Jamie Hampton of the United States on Friday.
Unseeded Pauline Parmentier of France reached the quarterfinals of the Japan Open by beating second-seeded Zheng Jie of China 6-3, 6-4 on Thursday.
Second-seeded Jie Zheng of China advanced to the second round of the Japan Open with a 4-6, 7-5, 6-4 win over Maria Jose Martina Sanchez of Spain on Tuesday.
Top-seeded Samantha Stosur of Australia advanced to the second round of the Japan Open by beating Erika Sema of Japan 6-4, 6-2 on Monday.
Top-ranked Victoria Azarenka eased into the third round of the Pan Pacific Open with a 6-1, 6-1 win over Austria's Tamira Paszek on Tuesday.