After Matthijs de Ligt officially completed his big money move to Juventus, the market of teenage wonderkids switching clubs for huge fees welcomed a new addition.
Some of the finest stars in world football were acquired as teenagers, while a recent trend has seen clubs pay more and more simply for raw potential.
Sportsmail casts an eye back through the archives to determine the ten most expensive teenagers in the history of the beautiful game.
10 – Renato Sanches: Benfica to Bayern Munich in 2016, £27.5m
Arsenal, Liverpool and Manchester United were being heavily linked with Sanches when Bayern Munich swooped in the summer of 2016.