THAT MOVE is too advanced wtf. he has enough agility just from that core training to have enough momentum and jump height to pull not just one knee kick while the enemy is low but another while the enemy is standing???
Also his opponent is built in a place like prison fighting so I doubt he'd knock out even after getting kneed twice in the face. so it could be either he'd give up cause Hobin's impressed him or he sees Han Gyeoul getting the shit beaten out of her???