There are a few Slavic-American mixed martial artists, most notably current UFC heavyweight champion Stipe Miocic. That list also includes Tim “The Bohemian” Lajcik (Czech-American: fought in both UFC and Pancrase. Retired.), the late Jeff Blatnick (Slovenian-American Olypic gold-medalist in wrestling, former UFC commentator and comissioner), and technically, professional wrestler Rob Van Dam (Polish-American, born Robert Szatkowski. Though a pro-wrestler, he’s a kickboxer trained in karate, aikido, tae kwon do and kendo, and he’s competed in toughman competitions before.)