Hi! A couple of months ago, I sent a picture and letter to Lionel Messi, and got it back signed!
I'm really happy, but I'm not sure if it's a sec. Even if it is, that's ok I can't put the picture because for some reason it won't let me, but I'll try to post it soon.
The address I used was:
Barcelona FC
Barcelona FC
Avinguda Aristides Maillol, s/n
08028 Barcelona
Spain