Under knee on belly

Under knee on belly is a descriptive name for the knee on belly bottom position — naming the defence from beneath a knee-on-belly pin.

Etymology. “Under knee on belly” frames the position from the pinned player’s side: a knee driven into the stomach from above. The label is the bottom counterpart to the top knee-on-belly.

Mechanics. Defence begins with a frame against the knee: hands braced on the knee and hip redirect its downward pressure to one side, creating the space to shrimp and recover guard. A frame works by redirecting force perpendicular rather than pushing back directly into it, so framing off the knee turns its weight aside rather than meeting it head-on.

Cross-reference. Full mechanical coverage on Knee on Belly — Bottom.