You have to give credit to anyone who goes up in weight for a fight. Nick Diaz isn't a huge guy. He has fought mostly at welterweight throughout his career, but has gone as low as lightweight before. Going up to 185lbs against Anderson Silva, who walks around over 200lbs, is a big step up. Like B.J. Penn and Frankie Edgar, it's impressive that he's even willing to give up the size advantage, and for that, Diaz deserves respect.