While there is no ""proof"" that Pujols is older than his listed age, the fact that he looks much older than his listed age and has an aging curve that suggests he's much older makes complaints like yours look really stupid. While no one, apparently, actually knows that he's much older, there's some evidence to support it, and a history of evidence like it being manufactured. There's no physical evidence anyone is aware of that Pujols is, say, 37, but it's always seemed pretty likely. Or maybe 63 years old is just about the middle of NBA careers. I'm not sure, I only watch 75 Bulls games a year.