From my vantage point, I would say he had a concussion. After the slam, which I didn't see, he was on his knees with his head in his hands on the mat. He looked in pain while rolling to his back and still kinda moving around. They brought the stretcher to the mat but they decided he didn't need it as he put his arms around his coaches and they basically dragged him off. He had jelly legs pretty bad and looked like he didn't know how to use his legs. So if he had a concussion or symptoms of one, he should still have been required to get approval from a doctor to wrestle his next match I think