Rules: You can only grapple opponents of an equal or smaller size category. Grappling requires a successful Brawling check. An opponent who can’t defend is pinned down. A grappled opponent gains the states of prone and bound. To escape, the opponent must make a successful check using Feat of Strength (Dragging & Pulling). You cannot defend as long as you hold your opponent. You need both hands free to grapple an enemy.
Combat Techniques: Brawling
AP Value: 5 adventure points
Publication: Core Rules page 248