That's like asking "How many rocks are there?".
You've got goalkeepers, defenders, midfielders and strikers, and apart from the goalkeeper position, each of those has many different types of player. Sweeper, wingback, fullback, winger, attacking midfielder, defensive midfielder, box-to-box midfielder, target man, second striker, the list goes on.
All do.
Chelsea
Job information can be found at the Soccer Positions website. In fact, it has a huge database regarding all kinds of Soccer jobs that are readily available.
When you are a child playing soccer you choose a position that you enjoy most or that you are best at after trying out all of the positions. You work at the position and it becomes your position.
pro soccer players
Pele considered to be the greatest soccer player of all time.
All of the same as in pro football
You can be as young as 15 to join a pro soccer team
Sure, Lampard, Joe Cole, John Terry and Beckham all went to soccer academies!
the main positions in child soccer is goalie forward mid fielder and defender
Pro Evolution Soccer Management happened in 2006.
Marcel Desailly Pro Soccer happened in 2004.