Pro Evolution Soccer 2008

Unlockable: Players From the Past
You can unlock batches of players from the past by winning the following cups or leagues: African Cup, American Cup, Asia Cup, Division 1 League, England League, European Cup, European League, France League, Italy League, Oceania Cup, Spanish League, and The Netherlands League.

Unlockable: All-Star Teams
To unlock the all-star versions of the following teams, win the World Cup with them in the game: Argentina, Brazil, England, France, Germany, Italy, and The Netherlands.

Source : gamecheats7.com