New Delhi, Nov. 7 -- On October 31, Zhao Honggang had his face badly injured while competing in the World Slap Fighting Championship in Riyadh, Saudi Arabia. Photos of the Chinese athlete's swollen eye quickly spread online, raising concerns about his condition. It was Zhao's debut in the competition.

Power Slap, created by UFC President Dana White, is a contest where two competitors take turns slapping each other with maximum force.

According to his profile, Zhao is the first Asian athlete from China to sign with Power Slap. The 35-year-old is the ninth-generation inheritor of the traditional Qijiatong back-fist martial arts form.

While Zhao later clarified that he did not have a concussion after his dramatic knockout, he did suffer a...