Art was also a wrestler. During the lockout he was training with Jon so I would bet he knows some BJJ at the least. I agree in general. During the last Rhonda Rousey fight I was thinking about if we were in a gym and I told her I would defend the arm bar how long before she took my arm. I figured it was about 90 secs. I out weigh her by well over 100lbs. My point is Art has some skills.