I think that Berto has really good reflexes and great hand speed. It's obvious. I wouldn't worry about him getting hit with a couple clean shots. I think that once he felt his opponents power, he realized that nothing could hurt him and he just wanted to get the guy out of there. Berto is very impressive IMO. Once he steps up his level of competition, I think you'll see better defense from him. The guy has definite power at 147.