Martina Hingis (L) of Switzerland and Sania Mirza of India compete during their women's doubles second round match against Zheng Saisai and Xu Yifan of China at the WTA Qatar Open 2016 in Doha, Qatar, Feb. 23, 2016. Martina Hingis and Sania Mirza won 2-1. (Xinhua/Nikku)
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