Eight badminton players have been disqualified from the doubles after being accused of "not using one's best efforts to win".
Two pairs from South Korea and one each from China and Indonesia made a series of basic errors in Tuesday's matches.
All four pairs were accused of wanting to lose in an attempt to manipulate the draw for the knockout stage.
Indonesia and South Korea have appealed and a decision is expected before Wednesday's quarter-finals at 1900 BST.
The Badminton World Federation met on Wednesday morning to discuss the case. As well as the "not using best efforts" charge, the players were also accused of "conducting oneself in a manner that is clearly abusive or detrimental to the sport".
Teams had blamed the introduction of a round-robin stage rather than a straight knockout tournament as the catalyst. In the round-robin format, losing one game can lead to an easier match-up in the next round.
In the first women's doubles match at Wembley Arena on Tuesday night, fans jeered China's Yu Yang and Wang Xiaoli and South Koreans Jung Kyung-eun and Kim Ha-na .
The longest rally in the first game lasted four shots, with match referee Thorsten Berg coming on to the court at one point to warn the players.
South Korea won the Group A match, which lasted 23 minutes, 21-14 21-11.
Both pairs were already through to the quarter-finals, with the winners to face China's Tian Quing and Zhao Yunlei. The two Chinese pairings could have only met in the final following the results in the final group game.
【新闻快讯】
据BBC消息，昨天羽毛球(微博)女双消极比赛的中国组合于洋/王晓理、韩国组合郑景银/金荷娜、河贞恩/金旼贞和印尼组合波利/焦哈利已经被世界羽联取消了奥运会资格。另据国际奥委会发言人表示，这8名选手只是被剥夺了继续比赛的资格，并不是被以更加严厉的方式驱逐出本届奥运会。
昨天的奥运会羽毛球小组赛，中国组合于洋/王晓理在与韩国组合郑景银/金荷娜的比赛中，表现失常，失误频频，0比2败下阵来，引来全场一片嘘声。赛后于洋/王晓理遭观众和媒体的强烈质疑，被认为是为了避免在半决赛提前与队友田卿/赵芸蕾遭遇，所以故意输球。郑景银/金荷娜为了避免与队友河贞恩/金旼贞提前遭遇，比赛态度也不积极。
随后另一对韩国组合河贞恩/金旼贞和印尼组合波利/焦哈利的比赛，为了不想在1/4决赛和于洋/王晓理交锋，同样消极比赛，试图输给对方，最终河贞恩/金旼贞1比2不敌波利/焦哈利。
比赛结束之后，国际奥委会和国际羽联时间展开调查，根据BBC报道，调查结果表示，奥委会和羽联认定以上四对选手“未尽全力争取胜利”，即消极比赛成立，最终取消奥运会接下去的参赛资格。
于洋/王晓理是中国羽毛球女双的头号组合，其中于洋曾和杜婧搭档，夺得北京奥运会羽毛球女双的。
据世界羽联新闻公告，印尼和韩国组合已经提出上诉，羽联将研究处理后做出最终决定并将召开新闻发布会。目前还未获得中国羽毛球队是否就此提出上诉的消息。
