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Barbora Strycova (R) of the Czech Republic and Hsieh Su-wei of Chinese Taipei compete during the doubles round robin match against Barbora Krejcikova and Katerina Siniakova of the Czech Republic at the WTA finals Tennis Tournament in Shenzhen, south China's Guangdong Province, Oct. 29, 2019. (Xinhua/Liang Xu)