Close to 1.5B, according to FIFA, I could not find any independent estimations. But what's 500m among friends.

I just asked two people not in tech >60 who Zuckerberg is and they both knew him. But, I mean, they still read the newspaper, so I guess they're out of touch, as well.

Yeah ok, anecdotally and I just asked my dad who never watched a football match in his life but uses facebook daily if he knew them and he only new Messi.