Gegard Mousasi is a Dutch mixed martial artist and former kickboxer, currently competing in Bellator MMA, where he is the former two-time Bellator Middleweight Champion. He is also the former DREAM Light Heavyweight Champion, former DREAM Middleweight Champion, former Cage Warriors World Middleweight Champion, and the former Strikeforce Light Heavyweight Champion, thus making Mousasi an overall six-time MMA world champion. At the moment of his departure from the UFC in July 2017, he was #4 in the official UFC middleweight rankings, and he is currently ranked the #12 middleweight MMA fighter in the world by Fight Matrix.

Kickboxing is a full-contact hybrid martial art and boxing type based on punching and kicking. Kickboxing originated in the 1950s to 1970s. The fight takes place in a boxing ring, normally with boxing gloves, mouth guards, shorts, and bare feet to favor the use of kicks. Kickboxing is practiced for self-defense, general fitness, or for competition. Some styles of kickboxing include: Full contact karate, Muay Thai, Japanese kickboxing, Lethwei, Sanda, and Savate.