Top seed Vera Zvonareva and second seed Patty Schnyder were upset in the opening round of the Istanbul Cup on Tuesday.
The Russian world No.7 was defeated by Mariya Koryttseva of Ukraine 6-2 1-6 6-4, while the Swiss world No.19 fell to Rossana de los Rios 7-6(3) 2-6 6-3.
Zvonareva was playing for the first time since withdrawing from the third round of Wimbledon with a right ankle injury, and handed Koryttseva her first ever Top 10 win, and first ever Top 30 win as a matter of fact.
The highest seed left in the draw is third-seeded Spaniard Anabel Medina Garrigues who topped Anastasiya Yakimova of Belarus 6-4 6-2. (photo: Stephane Martinache)