Mixed martial arts (MMA) is a full-contact combat sport that allows both striking and grappling, both standing and on the ground, using techniques from other combat sports and martial arts.

Submission wrestling (also known as submission fighting, submission grappling, sport grappling, or simply as no-gi) or combat wrestling (in Japan),[clarification needed] is a formula of competition and a general term for martial arts and combat sports that focus on clinch and ground fighting with the aim of obtaining a submission through the use of submission holds.