Maybe BJ is jealous he has the the body of a 12 year old vegetarian boy compared to some of his opponents. I type this as I watch the BJ/Sherk fight. After all the smack talk though, BJ knows he will have his hands full. If not now, he will soon.
I think it will be an exciting fight and I personally am not a BJ fan. I was turned off when during an interview w/ Rogan after a fight he says something to the effect of " If you want to know more about what BJ thinks go to BJpenn.com" I thought that was pretty arrogant. But, then again, I think he is trying to look out for himself and his business. I'll be happy with a good fight. All the fighters have great courage and skills to do what they do, so props to them.