as many as he/she wants
depends on wich level you wanna be a soccer player
He was initially purchased by Braga team in 2006 (and loaned to Penafiel) so since 2006 he started playing as a professional player
how many professional soccer teams are there in Europe
6 to 8
Well you have to practice very very hard to be a pro soccer player.
None, you can be illiterate and play soccer.