Marcelo (blue pants) starts by controlling Brendan's wrists.



Using a cross grip, Marcelo then dominates Brendan's right arm by grabbing his tricep and pulling Brendan's elbow to his own stomach.



Next Marcelo places his left foot on Brendan's right hip. To lock Brendan's arm in place, Marcelo pressis his knee against the back of Brendan's shoulder.



While keeping Brendan's arm locked with his left knee, Marcelo kicks his right leg over Brendan's back, trying to place his heel on Brendan's head, and pulls Brendan down.



If necessary, Marcelo pushes Brendan's head out of the way with his left hand to allow him to bring his left leg over Brendan's head. Marcelo continues to control Brendan's right wrist with his left hand.



Lastly Marcelo passes his left leg over Brendan's head and lifts his hips to hyperextend Brendan's arm, making sure Brendan's thumb is pointing up.



DEFENSE



The best defense is to avoid being caught in the armbar at all. When Marcelo feels Brendan trying to pull his elbow in, he simply drops it to Brendan's side.



If Marcelo allows himself to be put into position for an armbar, his defense will be more complicated. With his right arm in danger, Marcelo grabs his left upper arm with his right hand, grabs Brendan's left thigh with his left hand and presses Brendan's hips toward his chest, keeping his head tight against the leg, to prevent Brendan from extending and finishing the armbar.



Marcelo then posts on his left knee and extends his right leg, continuing to press Brendan's knees toward his chest while he pulls his arm out of Brendan's control, using quick, hard tugs.



Once his right arm is free, Marcelo reaches it across to grab behind Brendan's right shoulder.



Marcelo then circles around to his right side, keeping pressure on Brendan's hips, and establishes side control.