Could not give a flying f..k whether he is gay or not but, seriously, chances are he is. In fact almost impossible for him not to be.
The facts speak for themselves:
1/ he was a wrestler
2/ he obviously does bodybuilding
and 3 (and most conspicuously of all) he's an actor.
He may have been born straight but the above three career choices, well, three strikes and you are OUT!