In Ancient China, combat sport appeared in the form of Leitai, a no-holds-barred mixed combat sport that combined Chinese martial arts, boxing and wrestling. Lei tai in its present form appeared during the Song dynasty when it was used for boxing and Shuai Jiao exhibition matches and private duels. According to the "Chinese Kuoshu Institute" (UK), an ancestor of the lei tai was used during the Qin dynasty to hold Jiao Li wrestling competitions between imperial soldiers. The winner would be chosen to act as a bodyguard to the emperor or a martial arts instructor for the Imperial Military.