Tennis: WTA Qatar Open results - 2nd update

Results from the fourth day of the WTA Qatar Open in Doha on Thursday (x denotes seeding):

3rd rd

Petra Cetkovska (CZE) bt Li Na (CHN x1) 7-6 (7/2), 2-6, 6-4

Angelique Kerber (GER x6) bt Klara Zakopalova (CZE) 6-2, 6-3

Petra Kvitova (CZE x3) bt Lucie Safarova (CZE) 7-6 (7/2), 5-7, 6-2

Jelena Jankovic (SRB x5) bt Alisa Kleybanova (RUS) 6-1, 6-2

Sara Errani (ITA) bt Monica Niculescu (ROM) 2-6, 7-5, 6-1

afp