Brianna would have lost big time.
I disagree. Neither of them have good fighting skills. But Brian is stronger, heavier, tougher, and surprising nimble. Maybe not quite the cardio of Martyn, but either way, Martyn is an actor/bodybuilder - Brian is an athlete. Would love to see this fight. And 30m - man that's a lot to pay 2 guys who may just go 2 rounds or less.