Olympic badminton: China' s Li Xuerui wins women's gold
China's Li Xuerui beats compatriot Wang Yihan 2-1 after a close finish in the women's badminton final at Wembley Arena.
The 21-year-old secures gold by taking the last four points of the match after being tied 17-17 in the final set.
Earlier, India's Saina Nehwal prevented China from taking all three badminton women's singles medals after world number two Xin Wang retired because of a knee injury.
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