9 GRAY “No, do it again. You need to get the bend of your elbow beneath their chin in order to get the choke.” I yelled at the guy I’d been training all afternoon, running my hand over my neck in frustration. He wasn’t getting it. We were on the mat, and he was practicing his Brazilian Jiu Jitsu. He wanted to break into the MMA pro circuit, but as a stand-up fighter, his groundwork needed serious help, and he wasn’t picking it up fast enough for his first fight. But that was why he'd hired me, to literally beat him into shape. We’d been at it two hours now and everyone needed a break. He tried it two more times, sitting behind his partner, wrapping his arm around his neck the right way for the choke. With the slight change in position, his partner tapped out, which meant he would have p