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Head badminton referee Torsten Berg, right, talks to Indonesia's Greysia Polii, left, after he issued a black card to Polii and her partner Meiliana Jauhari as well as Ha Jung-eun and Kim Min-jung, of South Korea, unseen, during their women's doubles badminton match. AP
Head badminton referee Torsten Berg issues a black card to players in the women's doubles badminton match between Ha Jung-eun and Kim Min-jung, of South Korea, and Meiliana Jauhari and Greysia Polii, of Indonesia. AP
Head badminton referee Torsten Berg, third from left, talks to Indonesia's Greysia Polii, left, and her coach Paulus Firman after he issued a black card to Polii and her partner Meiliana Jauhari as well Ha Jung-eun and Kim Min-jung, of South Korea, unseen, during their women's doubles badminton match at the 2012 Summer Olympics. AP
An unidentified official talks to world doubles champions Yu Yang, left, and Wang Xiaoli, as South Korea's Jung Kyung-eun, right, and Kim Ha-na, listen during their women's doubles badminton match at the 2012 Summer Olympics. AP
Head badminton referee Torsten Berg, second from right, talks to South Korea's head badminton coach Sung Han-kook, right, after Berg issued a black card to the players in the women's doubles badminton match between South Korea's Ha Jung-eun and Kim Min-jung, and Indonesia's Meiliana Jauhari and Greysia Polii . AP