There is no end to the trials of Roger Clemens, it seems. I realize for a lot of baseball fans, that's perfectly fine.  Some see his righteous defiance as the ultimate in celebrity arrogance. Well, we'll let federal investigators sort that one out but in the meantime, the New York Daily News -- which trots out something embarrassing about Clemens every week or two -- reports today that Clemens kept a stash of Viagra around the locker room for performance-enhancing purposes.

On the field, that is.

Even if he did, Clemens would not have been breaking any Major League Baseball rules. Viagra is not a banned substance for players, not yet anyway. But the newspaper story went on to say how popular Viagra has become in locker rooms because of its reputed benefits in delivering oxygen and nutrients to muscles more efficiently and because it's suppose to help endurance, especially at high altitudes. Three universities are doing research into whether there's a scientific basis to support the anecdotal evidence that Viagra gives athletes a boost.

On the field, that is. On the field.