The 20 Most Valuable U21 Transfers of Summer 2025 – Ranked
The summer 2025 transfer window has been defined by a new generation of talent making bold moves across Europe. Clubs are investing heavily in players under the age of 21, hoping to secure the next big star before their value skyrockets. From Premier League giants to European powerhouses, the race for future icons is well underway.
Below is the definitive list of the 20 most valuable U21 players who completed transfers this summer.
20. Mamadou Sarr – £17M
French center-back Mamadou Sarr left Lyon to join Chelsea. Known for his physical presence and composure, he strengthens Chelsea’s long-term defensive plans.
19. Dário Essugo – £17M
Sporting CP’s talented midfielder Dário Essugo also made the switch to Chelsea. At just 19, he brings intensity, tackling strength, and fearless energy to the Blues’ midfield.
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18. Ange-Yoan Bonny – £17M
After impressing at Parma, Bonny completed a move to Inter Milan. His strong frame and movement in the box make him a potential Serie A breakout.
17. Wesley – £17M
The Brazilian full-back left Corinthians for AS Roma. With speed and attacking instincts, Wesley adds depth and width to the Italian side’s defense.
16. Habib Diarra – £17M
French midfielder Habib Diarra joined newly-promoted Sunderland. His all-action style and ability to carry the ball make him one to watch in the Premier League.
15. Arthur Vermeeren – £19M
Belgium’s top midfield prospect Arthur Vermeeren left Atlético Madrid to join RB Leipzig. A perfect fit for their dynamic, pressing system.
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14. Jobe Bellingham – £19M
After shining at Sunderland, Jobe Bellingham signed for Borussia Dortmund. He joins the same club where his brother Jude made his name, ready to create his own legacy.
13. Alberto Moleiro – £21M
Spanish playmaker Alberto Moleiro made the move from Las Palmas to Villarreal. With flair and vision, he’s expected to thrive in their possession-based system.
12. Evan Ferguson – £21M
The powerful Irish striker left Brighton to join AS Roma. Ferguson’s clinical finishing and Premier League experience bring immediate threat to Roma’s attack.
11. Cristhian Mosquera – £26M
Colombian defender Mosquera completed a move from Valencia to Arsenal. Calm on the ball and strong in duels, he bolsters Mikel Arteta’s backline.
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10. Tom Bischof – £26M
Germany’s midfield gem Tom Bischof moved from Hoffenheim to Bayern Munich. Technically gifted and composed, he’s seen as part of the club’s long-term future.
9. Jesús Rodríguez – £26M
Jesús Rodríguez made a surprising switch from Real Betis to newly promoted Como. The talented Spaniard will be key to their survival hopes in Serie A.
8. Franco Mastantuono – £26M
The 16-year-old sensation joined Real Madrid from River Plate. With creativity, flair, and maturity beyond his years, he’s the latest South American jewel at the Bernabéu.
7. Jhon Durán – £30M
After a brief stint at Al Nassr, Colombian striker Jhon Durán joined Fenerbahçe. His physical dominance and eye for goal suit the Turkish league perfectly.
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6. Mathys Tel – £30M
French attacker Mathys Tel left Bayern Munich to join Tottenham Hotspur. With raw pace and agility, he adds explosiveness to Spurs’ front line.
5. Rayan Cherki – £38M
Cherki left Lyon to sign with Manchester City. Known for his dazzling dribbles and creativity, he could thrive under Pep Guardiola’s demanding system.
4. Milos Kerkez – £38M
Hungarian left-back Milos Kerkez moved from Bournemouth to Liverpool. Aggressive and relentless on the flank, he’s expected to provide instant competition at Anfield.
3. Jamie Gittens – £43M
Gittens swapped Borussia Dortmund for Chelsea. The electric winger brings flair, speed, and Premier League readiness back to English football.
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2. Estêvão – £51M
The Brazilian prodigy joined Chelsea from Palmeiras. Estêvão is one of the most hyped young attackers in the world, combining samba flair with clinical instincts.
1. Dean Huijsen – £51M
Dutch center-back Dean Huijsen was signed by Real Madrid from Bournemouth. Tall, elegant, and confident in possession, he could be the next great Madrid defender.
