That's right - his birthday is in June. In tennis terms he definitely does seem older than that though - he's played at such a high level for so long and with a tennis style that's very wearing on the body. Amazing what he achieved when he was so young when you look at how much teenagers struggle now to break through.
If I remember, Rafa won his first major at 19. I don't see that happening again for a while. Those at the top, Andy, Djokovic, Federer and Nadal have made the game, quite rightly, so physical now, the youngsters seem to need longer to break through and deal with the demands of the tour.
I do feel for Rafa though, I really do. He comes across as being in a bit of a world of his own half the time, but I think he is one of the good guys out there. Sure, he might throw the odd wobbler, but he always comes across as being all right. The situation with his knees must be such a worry.