NEW YORK — Caroline Wozniacki became the highest seed to fall in the upset-filled women's draw at the U.S. Open when Czech Petra Cetkovska stunned the Dane 6-4 5-7 7-6(1) at Flushing Meadows on Thursday.
The upset left only three of the top 10 seeds still alive in the year's final grand slam - number one Serena Williams, who is seeking the fourth women's calendar-year Grand Slam, second seed Simona Halep and fifth seed Petra Kvitova.
Cetkovska, who has tumbled to a 149th ranking after missing seven months with a hip injury before returning in March, was playing in the Open thanks to a special injury exemption.