 I don't know if people realize just how incredible Willie Mays was, and I think everybody is going to talk about his hitting, so I'll just say one little nugget about defensively, which is unheard of today. He played a center field until he was 42 years old. That's unheard of today. If you look at most center fielders, it's the second most grueling position after catcher, and center fielders tend to fall off a cliff at age 30 defensively.