I only caught a portion of this today on The Score, with Matt Abbatacola filling in for Boers, but Matt said that he has a reliable source who indicated that a big part of Zambrano's struggles this year have been due to his lack of commitment to keeping himself in shape. There was some mention of a back problem and not doing all the necessary exercises to stay in top condition. I have no idea how reliable this "reliable source" is, but I don't think it is completely out of the question. Did anyone else catch the whole segment?