This is very simple to do, unlike above il explain how to get this achievement.
When you start your game make sure uve put the Serie A, La Liga and the Premier League, you need to choose them because the world player of the year will come from one of their leagues, you could choose the German league aswell if you want incase you want to cover Bayern.
All you do is just play through your game in which way you want, being that on holiday or playing through it normally. When it comes to near end of the season before the world player of the year is announced you take over all top european sides mainly Chelsea, Man U, Barcelona, Real Madrid, Juventus, Inter Milan, and Ac Milan and its almost certain to be one of their players as its the same players that win it every season, and normally its the likes of Barcelona players that win it.