Final answer:
The sport that considered format changes after teams were disqualified in the 2012 Olympics for trying to manipulate match outcomes was badminton.
Step-by-step explanation:
After teams from China, South Korea, and Indonesia were disqualified in the 2012 Olympics, the sport that mulled format changes was badminton. The disqualification was due to players being accused of trying to lose matches to secure a more favorable position later in the tournament. This controversy sparked a discussion about potential changes to the format to prevent such incidents in the future. One of the proposed changes was to switch to a knockout format throughout the competition to ensure that every game had high stakes and athletes had the incentive to win every match.