Alright, was Giambi on steroids this season? Negative. Point blank, that's all you need to know. He had an intestinal parasite, an inflamed knee, a respiratory infection, and a freakin pituitary tumor. Oh and FYI: your pituitary gland is in your brain of all places.
He overcame everything and proved that you don't need steroids to succeed in baseball, which is indeed the exact message baseball is trying to convey to the general audience.