so I have a guy in side control and he gets an underhook and turns to his knees. Immediately lock my arms as he's turning, and get to his side. Then you use your forearm on the back of his head to tip him over. He should tip back onto his side, and as soon as he does.. shove your arm all the way through and lock up the brabo choke. If you have just started training, then don't try this, and stick to something more basic. If you have started playing around with the brabo choke, and want a good entry.. this is one. That's milton viera in the pic by the way.