We're about to see Dwayne Johnson take on an entirely new challenge -- a real-life drama.

You can take the guy out of fighting, but you can't take fighting out of the guy. After becoming a superstar as WWE professional wrestler The Rock, Dwayne Johnson successfully parlayed his way into contemporary Hollywood royalty. But there will always be a bit of Rock in him. Which might explain why, as Variety reported, he sprung a surprise Madison Square Garden press conference on attendees of a UFC fight he was guest presenting. At this conference, Johnson announced that he would be playing renowned but controversial UFC fighter Mark Kerr, and produce the project through his Seven Bucks …