Li Xuerui of China reacts after scoring against Tai Tzu Ying of Chinese Taipei during the women's singles final match of Yonex Open Japan in Tokyo, Japan, June 15, 2014. Li won 2-0. (Xinhua/Stringer)

Li Xuerui of China competes against Tai Tzu Ying of Chinese Taipei during the women's singles final match of Yonex Open Japan in Tokyo, Japan, June 15, 2014. Li won 2-0. (Xinhua/Stringer)

Tai Tzu Ying of Chinese Taipei reacts after losing a point against Li Xuerui of China during the women's singles final match of Yonex Open Japan in Tokyo, Japan, June 15, 2014. Li won 2-0. (Xinhua/Stringer)

Tai Tzu Ying of Chinese Taipei reacts after losing a point against Li Xuerui of China during the women's singles final match of Yonex Open Japan in Tokyo, Japan, June 15, 2014. Li won 2-0. (Xinhua/Stringer)