Oudin ousts Dementieva
Fourth seed Dementieva lost 5-7 6-4 6-3 to American Melanie Oudin, who survived a thigh injury in the third set to close out a famous victory.
Fifth seed Jankovic, a finalist last year, lost a thrilling encounter against impressive Kazakh Yaroslava Shvedova 6-3 6-7 (4-7) 7-6 (8-6).