The England international burst onto the scene this season after establishing himself as a permanent fixture in the Borussia Dortmund starting XI.
Having moved to Germany from Manchester City back in 2017 for around £8million, Sancho has been making headlines and breaking records with his on-field performances.
The 19-year-old won the Player of the Month award in October 2018 and scooped the Goal of the Month award in February 2019, as well as becoming the youngest ever Dortmund player to score 10 goals in a single Bundesliga campaign.
His displays saw him rewarded with a new contract keeping him at the Signal Iduna Park until 2022, and his dramatically increased transfer value has been reflected in a new research study.
Sancho has been named the most valuable U20 player across the big five European leagues, according to CIES Football Observatory.
The Three Lions ace would command an estimated fee of €150.3million (£128.2m), based on a complex algorithm taking into account past fees, contract length and on-field performances.
That is over double the amount of second-placed Matteo Guendouzi, with the Arsenal youngster valued at €70.1m (£59.8m).
There are also representatives from Manchester United, Chelsea and West Ham in the top 25 while Roma have two players in the elite list – but which starlets make the cut?
Jadon Sancho has been named the most valuable U20 player in Europe (Image: GETTY)
Matteo Guendouzi is the second-most expensive young player based on new research (Image: GETTY)
25. Diego Lainez (Real Betis) – €16m
24. Fran Beltran (Celta Vigo) – €17.2m
23. Forran Torres (Valencia) – €17.9m
22. Dan-Axel Zagadou (Borussia Dortmund) – €19.5m
20 (Tied). Callum Hudson-Odoi (Chelsea) – €20.3m
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Callum Hudson-Odoi attracted interest from Bayern Munich in January (Image: GETTY)
20 (Tied). Moise Kean (Juventus) – €20.3m
19. Ozan Kabak (Stuttgart) – €20.8m
18. Phil Foden (Manchester City) – €21.9m
17. Boubacar Kamara (Marseille) – €26.6m
16. Alban Lafont (Fiorentina) – €28.3m
Alban Lafont is one of several promising young goalkeepers around Europe (Image: GETTY)
15. Dwight McNeil (Burnley) – €28.6m
14. Pedro Porro (Girona) – €29.4m
13. Diogo Dalot (Manchester United) – €30.2m
12. Samuel Chukwueze (Villarreal) – €35m
11. Ibrahima Konate (RB Leipzig) – €40m
Ibrahima Konate is worth around €40million to RB Leipzig (Image: GETTY)
10. Ryan Sessegnon (Fulham) – €43.5m
9. Evan N’Dicka (Frankfurt) – €44.1m
8. Justin Kluivert (Roma) – €44.3m
7. Vinicius Junior (Real Madrid) – €55m
6. Gianluigi Donnarumma (AC Milan) – €59.4m
Chelsea: Callum Hudson-Odoi scores wonder goal in training
Gianluigi Donnarumma is only 20-year-olds but has made over 150 appearances for AC Milan (Image: GETTY)
5. Declan Rice (West Ham United) – €64.2m
4. Kai Havertz (Bayer Leverkusen) – €64.3m
3. Nicolo Zaniolo (Roma) – €67.4m
2. Matteo Guendouzi (Arsenal) – €70.1m
1. Jason Sancho (Borussia Dortmund) – €150.3m
Sancho would command a fee more than double players his same age (Image: GETTY)