Gold medalist Li Xiaoxia (R) of China shakes hands with her teammate Liu Shiwen during the awarding ceremony for women's singles at the 2013 World Table Tennis Championships in Paris, France on May 19, 2013. Li claimed the title by defeating her teammate Liu Shiwen with 4-2. (Xinhua/Tao Xiyi)

Li Xiaoxia of China poses with the trophy during the awarding ceremony for women's singles at the 2013 World Table Tennis Championships in Paris, France on May 19, 2013. Li claimed the title by defeating her teammate Liu Shiwen with 4-2. (Xinhua/Tao Xiyi)

Li Xiaoxia of China poses with the trophy during the awarding ceremony for women's singles at the 2013 World Table Tennis Championships in Paris, France on May 19, 2013. Li claimed the title by defeating her teammate Liu Shiwen with 4-2. (Xinhua/Tao Xiyi)

Chen Chien-An and Chuang Chih-Yuan (R) of Chinese Taipei pose with the trophy during the awarding ceremony of men's doubles at the 2013 World Table Tennis Championships in Paris, France on May 19, 2013. Chen and Chuang claimed the title by defeating Hao Shuai and Ma Lin of China with 4-2.(Xinhua/Tao Xiyi)

Hao Shuai and Ma Lin (R) of China react during the final of men's doubles against Chen Chien-An and Chuang Chih-Yuan of Chinese Taipei at the 2013 World Table Tennis Championships in Paris, France on May 19, 2013. Hao and Ma lost the match 2-4.(Xinhua/Tao Xiyi)

Hao Shuai and Ma Lin (R) of China compete during the final of men's doubles against Chen Chien-An and Chuang Chih-Yuan of Chinese Taipei at the 2013 World Table Tennis Championships in Paris, France on May 19, 2013. Hao and Ma lost the match 2-4.(Xinhua/Tao Xiyi)

Chen Chien-An (R) and Chuang Chih-Yuan of Chinese Taipei celebrate during the final of men's doubles against Hao Shuai and Ma Lin of China at the 2013 World Table Tennis Championships in Paris, France on May 19, 2013. Chen and Chuang won 4-2. (Xinhua/Tao Xiyi)

Chen Chien-An (1st L) and Chuang Chih-Yuan (2nd L) of Chinese Taipei celebrate scoring during the final of men's doubles against Hao Shuai and Ma Lin of China at the 2013 World Table Tennis Championships in Paris, France on May 19, 2013. Chen and Chuang won 4-2. (Xinhua/Tao Xiyi)