Suss' teammate Bastian Steger fell to Chinese Olympic silver medalist Wang Hao, 11-9, 11-6, 11-6, 11-6.

In the women's action, Chinese Yao Yan had the most difficult win as her more heralded teammate Zhang Yining had the easiest.

The 18-year-old Yao, who joined China's world championship team at the last minute, outlasted Hong Kong player Lin Ling 11-7, 5-11, 6-11, 11-9, 7-11, 11-5, 16-14.

Tan Wen Ling of Italy, scheduled to face world No. 1 Zhang Yining Thursday night, pulled out of the world championships in the morning, citing a right shoulder injury.

Gennaro Bozza, a veteran reporter with the Italian newspaper La Gazzetta dello Sport and a friend of Tan, had a different explanation.

He said Tan was forced to quit the Zagreb championships after she challenged the authority of the Italian table tennis association.

"Tan was told last night in a team meeting that the Italian team no longer needed the service of a rebel and she should go home immediately," said Bozza.

Second-seeded Chinese Wang Nan and Chinese national champion Peng Luyang respectively beat Hong Kong players Zhang Rui and Jiang Huajun.

Chinese Guo Yue and Guo Yan, who are not related, beat Wu Jiaduo and Nicole Struse, both of Germany, in five sets.

Chinese Li Xiaoxia sent Svetlana Ganina packing.

China has booked three semifinal spots in the mixed doubles and two each in the men's and women's doubles.

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