Football fans are constantly excited about the 'next big thing' and there are a number of players that catch their fancy when they burst onto the scene.
Any wonderkid usually gets compared to the greatest and that means an inevitable comparison to Lionel Messi.
Having said that, here's a list of the 10 most expensive youngsters aged 20 and under who could follow the Argentine's footsteps and make a serious case to be the greatest of all time.
Bukayo Saka - Left Midfield -19 -€65.00m
Mason Greenwood - Right Winger - 19 - €50.00m
Rodrygo - Right Winger - 20 - €35.00m
Bryan Gil - Left Winger - 20 - €30.00m
Curtis Jones - Central Midfield - 20 - €30.00m
Benoît Badiashile - Centre-Back - 20 - €28.00m
Gabriel Martinelli - Left Winger - 20 - €22.00m
Thiago Almada - Attacking Midfield - 20 - €20.00m
Eric García - Centre-Back - 20 - €20.00m
Rayan Aït Nouri - Left-Back - 20 - €18.00m