He actually was a bodybuilder, prior to his acting career now. Obviously, people are asking that question because in most of the movies; he’s pretty jacked and pretty ripped. That’s really what he’s known for. His kind of his calling card as being; this ripped guy, this ripped martial artist in these movies.
He’s in movies like blood-sport, kickboxer, and Double Impact, Universal Soldier, Last Action Hero with Arnold Schwarzenegger, Street Fighter… in countless other movies throughout the past couple of decades here from those.