Cotto upset by Madman Mayorga sets up good versus evil Pacquiao fight

LAS VEGAS--I think Dirty Harry Callahan, the rebellious San Francisco movie detective played by the iconic Clint Eastwood said it best when he said on screen, ?A man's got to know his limitations.? One of my limitations is a tendency to be a chalk player, meaning picking the favorite, to win in most big fights. Oh, once in while I've gone against the betting grain and tabbed an underdog to win and came out smelling like a daisy. But, in 50 years around ringside, I admit my habit is to go with th…