for example Vitali vs Wlad or Juan Manuel against Rafael if they were in the same weight class? do you actually think they would fight at their best trying to ko their opponent/brother or would it be a waste of money?
I wouldn't it be pitter pat move move stuff. Just look at tennis when venus and serena williams have come up against each other in finals or semi's the never give their all, can you imagine to siblings giving their all in a combat sport?
I'd travel to Hamburg Germany to watch it live......... That would be a blockbuster fight.......They would be competetive.. No doubt.......