The worlds next best players

there are so many young players setting the world alight with their amazing talents. everyones main future star is pato but in my mind barcalona's bojan is a great player. also in a several years time i expect to see hatem ben arfa sprinting down the flanks as one of the worlds best wingers. with all the talk of strikers such as aguero and alaexandre pato our future defenders are overlooked. the only prospects i can think of that will be stopping goals instead of scoring them are the brazilian fullbacks fabio and rafael, coming to manchester united soon. if anyone wants to comment try and think of a player for each position