Longtime Cohn Zohn  reader Shane Buettner has his doubts about the legitimacy of Juan Manuel Marquez’ sixth-round knockout of Manny Pacquiao. He said I am naive if I believe Marquez is on the level. Naive is one of the nicest things I have been called lately. Shane is also knowledgeable about football, so I take seriously the things he writes to me. He sent along an article which ran before the fight explaining how Marquez increased his strength for this fight. It makes you wonder. An additional irony to this story line involves Pacquiao. For a long time there have been questions how he himself got so strong. To read the article, please click here.