Armbar defense with BJ Penn

One of the most oft-attempted moves in MMA and self-defense has a way out. The one teaching it here is BJ Penn. http://www.youtube.com/watch?v=EXfZ_wTJSfM
Renato Babalu Sobral nos tempos de Strikeforce

Why are you a fighter?

What separates the wheat from the chaff in a fight? Renato “Babalu” Sobral has the answer. http://www.youtube.com/watch?v=1NfNo6TIDg4
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