
18. Murthel Groenhart – 2017
Groenhart is a former Dutch kickboxer who had a great career. He fought for massive promotions like Glory and K-1. While he never received mainstream acclaim, he went viral after one wild incident. Groenhart fought Harut Grigorian in Paris when the Armenian inexplicably turned his back. Then, the Dutch star knocked him out.

He attacked a legal target and the referee hadn’t intervened so it was an acceptable knockout. However, Grigorian’s fans didn’t agree. They staged an invasion and attacked Groenhart. Security struggled to rescue the stricken Dutch fighter and several people faced arrest. It was a crazy ending to the night. In the end, Grigorian defeated Groenhart in a rematch in Chicago.