I'm not saying that Sam J. Jones was Flash Gordon - there's no such thing. No actor can be the person, that's a bunch of crap. People pay to see an actor be himself, whether he plays Hamlet or whatever. ↗
Core strength and stability is very important to me. Tennis is all about rotation of the body and my ability to create power. I incorporate a lot of abdominal, back and glute exercises into my gym sessions. ↗