The accusation comes after Tuesday's matches at Wembley Arena where players were booed by fans after they appeared to not exert themselves in preliminary rounds before they were set to move on to elimination competition, USA Today reported.
USA Today noted that in one match pitting Xiaoli Wang and Yan Yu of China against Kyung Eun Jung and Ha Na Kim of South Korea, the players appeared to deliberately serve into the net, triggering a warning from the referee.
The Chinese Olympic delegation is also investigating its players. In a statement to CNN the delegation said, "Upon learning the incident, the delegation leadership has ordered an investigation into what and why it happened."
Players blamed a format change on why they would throw a game. The London Olympics introduced a round-robin stage rather than a straight knockout tournament. In the round-robin format, losing one game can lead to an easier matchup in the next round, according to the Associated Press.
IOC spokesman Mark Adams told the AP, "We have full confidence in the federation to take any necessary steps. They have the experience to deal with such issues."