The ever changing world of football transfers is now being influenced by algorithms regarding expected player values, with Manchester United's Mason Greenwood viewed as the world's fifth most valued youngster.
The 20-year-old has become a major player for Ole Gunnar Solskjaer's side in recent years and is set to be a mainstay with club and country.
Clubs and agents conduct their business by using a host of platforms, with data and statistics central to that.
A player's age, current level, perceived potential, current club all factor in to their value. A player's agent can also be indicator.
And those at TransferRoom have a formula that works out a players expected transfer value (xTV) which is then used as a guide in negotiations.
Greenwood is not going to be leaving Old Trafford anytime soon but his xTV is €59.8m (£50.4m), making him the third most expensive Englishman on the list of stars aged under 21.
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He is behind compatriots Bukayo Saka and Jude Bellingham.
The latter has flourished since moving to Borussia Dortmund, although United were keen on the teenage midfielder.
Bellingham, who has been praised by Roy Keane recently, is valued at €60m (£50.6m).
Meanwhile, Saka has become a leading light for Arsenal and played several times for England at Euro 2020.
The 20-year-old's versatility is another key factor and his xTV is €61.3m (£51.7m).
Barcelona's Pedri is valued as the most expensive young player currently on the planet. He has become a crucial cog for his club and Spain, earning himself a value of €71.1m (£60m).
Bayer Leverkusen's Florian Wirtz, who is now becoming part of the picture with Germany having enjoyed U21 Euro success, has an xTV of €66.9m (£56.4m).
Edouardo Camavinga, another player linked with United, ended up making the major move to Real Madrid in the summer.
He is represented by Jonathan Barnett, who also manages Jack Grealish, and has a value of €57.4m (£48.4m).
Leicester City's Wesley Fofana is currently out for a lengthy period having suffered a serious injury in pre-season.
The Frenchman helped the Foxes win the FA Cup and has an xTV is €55.7m, making him the most expensive defender.
Pedri's Barcelona team-mate Ansu Fati, current PSG loanee Nuno Mendes and Bayern Munich's Jamal Musiala round out the top ten.
Outside of Europe's top five leagues Ajax's Ryan Gravenberch, who is part of Mino Raiola's client list, is among the highest on the U21 xTV list with a value of €34.9m.
Liverpool target Karim Adeyemi, who plays in Austria with RB Salzburg, has a value of €20.5m.
Top 10 most valuable youngsters
1. Pedri - £60m
2. Florian Wirtz - £56.4m
3. Bukayo Saka - £51.7m
4. Jude Bellingham - £50.6m
5. Mason Greenwood - £50.4m
6. Eduardo Camavinga - £48.4m
7. Wesley Fofana - £47m
8. Ansu Fati - £39m
9. Nuno Mendes - £38.6m
10. Jamal Musiala - £37m
