Research papers by Jae-in Yoo and Hyun-kyung Kim made important contributions to this article.

Jae - in Yoo和Hyun - kyung Kim的研究论文对本文有重要贡献。

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Earlier, top-seeded favorites Guo Yue and Niu Jianfeng of China struggled to defeat ninth-seeded Kim Kyung-ah and Kim Bok-rae of South Korea 4-3 in a dramatic bronze medal match.

CNN: Chinese faster, higher, stronger

In the first of the Tuesday matches under scrutiny, Wang and Yu played South Korea's Jung Kyung-eun and Kim Ha-na in a game in which "neither side seemed to be exerting themselves, " the official Olympic news service said.

CNN: Olympic badminton players disqualified for trying to lose

In the first of the Tuesday matches that prompted the uproar, Wang and Yu played South Korea's Jung Kyung-eun and Kim Ha-na in a game in which "neither side seemed to be exerting themselves, " the official Olympic news service said.

CNN: STORY HIGHLIGHTS