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China's Yan Zi (top) and Zheng Jie play in their doubles match against Ashley Harkleroad of the U.S. and Russia's Galina Voskoboeva at the U.S. Open tennis tournament in New York, September
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Tennis - French Open - Roland Garros, Paris, France - 31/5/09 China's Zi Yan (L) and Jie Zheng during their third round doubles match Mandatory Credit: Action Images / Scott Heavey Livepic Stock Photo - Alamy
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Tennis Server ATP/WTA Pro Tennis Showcase - 2007 Roger Cup (Women's) - Toronto, Canada - Yan Zi / Eleni Daniilidou
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Yung-Jan Chan of Taiwan reacts during her tennis match against Zi Yan of China at the Women's PTT Bangkok Open in Bangkok October 13, 2007. REUTERS/Chaiwat Subprasom (THAILAND Stock Photo - Alamy
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