Well karate tournaments are different than real fighting. The dude in the first movie had about 5 inches and 40lbs on Daniel so he could've just tackled him to the ground. But in Karate tournaments you can't do that...
Now how did he not see the kick coming when he had his hands out and his other leg was broken? I have no idea
Eta: as soon as he wins all these people come up and hug him and shit, but like he's still got a fricked up leg. I'd be pissed if all these people were jumping up and down and shoving me if my leg was broken
This post was edited on 11/25 at 1:30 am