UFC middleweight champion Anderson Silva has accomplished everything there is to accomplish in mixed martial arts. He has raised the bar and made us redefine what is considered greatness.  He has become the standard that all future fighters will be compared to and ultimately judged by.  Silva (33-4) puts his undefeated UFC record and middleweight title on the line on Saturday against challenger Chris Weidman (9-0), but to Silva it’s just another fight. “A fight is a fight, and this is another fight,” said Silva on a recent media conference call. The 38-year-old Brazilian superstar has nothing left to prove and fights because it’s what he loves to do. “Whatever I should have already done in the sport I’ve done.  Win or lose, I’ve already done everything there is to do and now it’s just a matter of doing what I love to do,” he said.