Anytime Roger Clemens and Viagra appear in the same story, you know we're going to run with it.

It's been revealed today in the New York Daily News that Clemens was on Viagra while in Yankees pinstripes, and that wasn't just to please the ladies (or underage karaoke singers).

Apparently Viagra helps build endurance (does it ever), especially for athletes who compete at high altitudes, and it also delivers oxygen, nutrients and performance-enhancing drugs to muscles more efficiently.

It's so widely used for off-label purposes that it's drawn the attention of anti-doping officials and law-enforcement agencies in the United States and beyond. I don't even want to know how they test to see if a guy's on it.

Clemens apparently stashed the stiffy pills in a GNC vitamin bottle in his locker at Yankee Stadium, according to a source familiar with the clubhouse. But he apparently wasn't the only guy doing it. According to reports he got Viagra from another teammate.

Considering Victor Conte said all his athletes were on it, including Jason Giambi, Barry Bonds and Marion Jones, Giambi is the obvious choice. But A-Rod on Viagra provides more jokes than I can possibly imagine, so I'll go with him as the guilty party.