Aymeric Laporte (Athletic Bilbao)
Age: 19
Position: Centre back
Aymeric Laporte is arguably the best young central defender in world football at present, with Marquinhos perhaps the main contender for that title in his age bracket.
The Basque defender has been in sparkling form in La Liga this season, helping Athletic Bilbao close in on UEFA Champions League with some commanding displays at the back.
Would be the ideal signing for: FC Barcelona. Carles Puyol retires at the end of the season.