fighters sign contracts to fight so they do agree but also you really dont want to piss off dana and joe silva so u take whats offered to you. As for this situation, the He/She is built like a man. men have bigger joints, bigger hands, better tendon strength all things that effect success in MMA. this person will never fight in any reputable company (UFC,Bellator,Dream,MFC) but lower tier companies looking for a freakshow fight to bring in the fans will sign it to deals to fight