It seems unlikely with the size difference and skill level of Silva - and you want to believe that the legend couldn't possibly lose again - but the reality of this fight is that either man could lose. Someone has to (a draw here is just not going to happen). Diaz is a tough out for any fighter. And as we saw with the Chris Weidman fight, Silva can get caught - and Diaz is the type of fighter who will walk right at him and try to catch him. Could the unthinkable happen, and Silva lose yet again? Actually, he could.