DUBAI, United Arab Emirates -- Tournament organizers say Wimbledon champion Petra Kvitova, French Open winner Li Na and Vera Zvonareva have pulled out of the Dubai Tennis Championships because of illness and injury.
Organizers did not give details.
Last week, Zvonareva retired from the Qatar Open while trailing Monica Niculescu of Romania 7-5, 3-2 because of pain in her left hip, while Kvitova pulled out of that tournament with an unspecified injury.
Australian Open champion Victoria Azarenka is the top-seeded
player at Dubai tournament, which started Monday.
Azarenka will meet Germany's Julia Goerges in her opening match on Wednesday.
Goerges advanced to the second round Monday after defeating Svetlana Kuznetsova of Russia, 2-6, 7-6 (2), 6-4.
Information from The Associated Press contributed to this report.