Breakdown of Stefan Struve's Armbar on Lavar Johnson - UFC 146

Stefan Struve and Lavar Johnson clinch up against the cage, with Johnson trying to throw short punches and Struve holding a tight overhook on Johnson's right arm

Keeping that tight overhook, Struve jumps guard

With the arm trapped, Struve just needs to swing the right leg around Johnson's head for the armbar

With the leg around, the trap is closed, and the armbar is cinched in for the submission victory