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.
