At 6'11", Semmy Schilt was one of the most intimidating giants to ever step into the kickboxing ring. With devastating knees, powerful kicks, and unbelievable reach, Schilt dominated some of the biggest names in K-1 and became a four-time K-1 World Grand Prix champion. From brutal knockouts to legendary battles, this is the story of one of the most dominant heavyweight kickboxers ever. Watch Semmy Schilt's most devastating knockouts and unforgettable moments. #boxing