In principle, mma is a boxing intensive reading that does not count seconds. It means that when an opponent knocks down to the ground and doesn't get up for a period of time, he loses Sanda. The referee's intensive reading on the court is to feed the protection players to rest during this time and then ask them if they can still play. Personally, I think MMA coach from Taiwan Province is currently teaching in Shenzhen. I hope my answer is helpful to you. If you are unclear or need to consult again, please ask me questions. Thank you.