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China's Bao Yixin and Tang Jinhua celebrate after winning against Denmark's Christinna Pedersen and Kamilla Rytter Juhl on October 20, 2013 in Odense in the women's double competition of the Danish Badminton Open event. AFP PHOTO/ Claus Fisker/ Scanpix DENMARK / DENMARK OUT (Photo credit should read CLAUS FISKER/AFP/Getty Images)

China's Bao Yixin and Tang Jinhua celebrate after winning against Denmark's Christinna Pedersen and Kamilla Rytter Juhl on October 20, 2013 in Odense in the women's double competition of the Danish Badminton Open event. AFP PHOTO/ Claus Fisker/ Scanpix DENMARK / DENMARK OUT        (Photo credit should read CLAUS FISKER/AFP/Getty Images)

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KUALA LUMPUR, MALAYSIA - JANUARY 19: Bao Yixin and Tang Jinhua of China shows off their gold medals after they defeated Misaki Matsutomo and Ayaka Takahashi of Japan during the Final of the Women's Doubles of the Malaysia Badminton Open on January 19, 2014 in Kuala Lumpur, Malaysia. (Photo by Stanley Chou/Getty Images)

KUALA LUMPUR, MALAYSIA - JANUARY 19:  Bao Yixin and Tang Jinhua of China shows off their gold medals after they defeated Misaki Matsutomo and Ayaka Takahashi of Japan during the Final of the Women's Doubles of the Malaysia Badminton Open on January 19, 2014 in Kuala Lumpur, Malaysia.  (Photo by Stanley Chou/Getty Images)