Submission Underground

Submission Underground (SUG) is a professional submission-only grappling series founded by MMA fighter Chael Sonnen. The organization features top athletes from around the world competing under a ruleset designed to prioritize submissions over points, creating a fast-paced and exciting format.

SUG events are known for high-profile matchups, often showcasing elite no-gi specialists in headline bouts. The organization streams its competitions internationally, contributing to the growing visibility and professionalization of submission grappling.

Beyond its entertainment value, Submission Underground promotes innovation in grappling strategies, highlighting aggressive and creative approaches to submission hunting. It has become a prominent platform for professional grapplers seeking both recognition and competitive challenge.