Smaller fighters can defeat larger ones because smaller muscles use less oxygen, are more reactive, and more efficient.

“one of the way one of the reasons that happens is that big muscles require a lot of oxygen and if you throw 20 punches in a row and you're a big guy and you don't connect you're you're out of breath at the end of that and small muscles small frames use less oxygen and are more reactive and more efficient and so if you can if you're as a smaller fighter if you can slip 20 punches you're not in oxygen debt the big guy is right”