In what sport were Chinese, Indonesian and South Korean athletes disqualified during the 2012 Olympics for trying to lose?

The badminton women's doubles tournament at the 2012 Olympic Games in London took place from 28 July to 4 August at Wembley Arena. The draw for the tournament was made on 23 July 2012. Thirty-two players from 14 nations competed in the event.

The competition became embroiled in controversy during the group stage when eight players (two pairs from South Korea and one pair each from China and Indonesia) were ejected from the tournament by the Badminton World Federation after being found guilty of "not using best efforts" and "conducting oneself in a manner that is clearly abusive or detrimental to the sport" by playing to lose matches in order to manipulate the draw for the knockout stage. In one match, both teams made a series of basic errors, and in one match the maximum rally was just four shots.