UWF International
As Severn is accomplished in amateur wrestling, he is also an accomplished professional wrestler, having competed in shoot style wrestling for UWF International in Japan, as well as the National Wrestling Alliance (NWA), and the World Wrestling Federation (WWF) in the US. Severn claims Lou Thesz as an influence to professional wrestling. Thesz would later become a fan of Severn after watching him compete in UWFi and UFC, praising Severn's wrestling skills.