Determination 20. It's not always a sure-fire sign that a player will turn out to be incredible, but it is very encouraging to say the least. A youngster with that attribute tends to reach their potential and develop faster than others. Ruben Blanco is 20, meaning he's older than some of the wonderkids on the list, but don't worry, he's just over half the age of Gianluigi Buffon. He's young. Blanco's stats are decent enough, but with some strategic loans and top U21 training he will turn into a great player.