Maybe, but there are plenty of overweight power pitchers who manage to stay healthy. Zambrano for one, Clemens is a bit tubby now too. I hope you're right, but I don't know if weight has a correlation with arm injuries. Zambrano's back problems are directly tied into the weight he packs on during a season, and it's the main reason I'm incredibly apprehensive about the Cubs giving him a longterm deal. That weight is only going to be harder to keep off and keep down as he gets older. Clemens, as per usual, is the exception to the rule, and should rarely be compared to other pitchers, IMO.