Earlier Saturday , China 's double gold medalist Chen Zhong crashed out in the quarterfinals after initially being declared the winner . Cuba 's Angel Matos kicks referee in the face during bronze medal match . Comment: Matos and his coach are facing life bans from taekwondo .
Cuba 's Angel Matos kicks referee in the face during bronze medal match . Comment: Matos and his coach are facing life bans from taekwondo .