Jesus christ what a dickhead you are.
Read this part again:
You have no tangible proof. Here's how it works:
He had a late birth registration at the same hospital he was born. This was in 2002. It's not a very rare occurrence, especially not in the circumstances this happened. And no, you can't go to a Lisbon hospital in 2002 with an 11-12 year old and say that he's 5 without having to prove it. At that age, it's also quite easily proven one way or another if there is any doubt. Again, this is not a very rare occurrence.
However, the Sporting president many, many years later picked up on it. Without any proof of course, but he doesn't need it. Because all you need is someone to spread the rumour, "the seed of doubt". In Sweden we call them useful idiots, and you're being one of them right now. The kind who needs fuck all confirmation to spread bullshit that confirms their own prejudice. In this case, with a player of African heritage with a late birth certificate, it appeals to a prejudice deep within many people, which is why it's so effective.
You're running a racist errand and you have literally nothing to support the rumour you're spreading. All it takes is the Sporting president and useful idiots not googling things like "late birth registration" to find out that you can't just claim an age and that's it. Useful idiots are also never, ever racists in their own eyes. As if it's a coincidence that he's black. If he wasn't, the Sporting president wouldn't have picked up on it in the first place. But believe it or not, white players too will have late birth registrations among them. Not that white players ever have their age questioned -- I can't think of a single one, myself.
The problem is that me writing this all out takes time, but it just takes a hunch and some prejudice for people like you to spread the bullshit further. Which I'm sure you will. Because "apparently United had reservations". Fucking hell, sit the fuck down.