I always remember players from youth tournaments.
2006 under 16 european championship won by spain vs england in the final. Bojan who was supposed to be the next Messi along with fran merida.
Star of the tournqment was some 15 year old dude called eden hazard. Belgium where crap but he was head shoulders and knees above every single player in the tournament. Guy was running riot.
Then you get under 19 toulon meetings where I first saw a 17 juan mata.
I love it.