An overview shows China's Zhang Nan (unseen) and China's Zhao Yunlei return to Japan's Kenta Kazuno and Japan's Ayane Kurihara during their mixed doubles quarter-final badminton match at the Riocentro stadium in Rio de Janeiro on August 14, 2016, at the Rio 2016 Olympic Games. China's Zhang and Zhao won the match. / AFP / Antonin THUILLIER AND Laurent KALFALA (Photo credit should read ANTONIN THUILLIER,LAURENT KALFALA/AFP/Getty Images)
