In a historic update that has sent ripples across European scouting departments, Transfermarkt has revised the market values of 436 players in Belgium’s Jupiler Pro League — and the result is headline-grabbing.
Leading the list is Club Brugge’s Ardon Jashari, whose new valuation of €32 million marks the highest market value in Belgian league history. With elite clubs circling and fresh Champions League qualifications in the mix, this update signals both the emergence of Belgian football’s next generation and the commercial explosion of one of Europe’s most underrated leagues.
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Ardon Jashari: The JPL’s First €32M Man
At just 22 years old, Swiss international Ardon Jashari has become the crown jewel of Belgian football. The defensive midfielder, known for his press-resistance, tempo control, and mature football IQ, has jumped from €25 million to €32 million in value — the largest single valuation in JPL history.
Why the Sudden Surge?
According to Transfermarkt Belgium manager Bart Tamsyn, interest from PSG and Manchester City is what’s fueling the valuation spike.
“Both PSG and City have him on their list. PSG sporting director Luis Campos has even seen him play live,” Tamsyn noted. “That level of attention rarely happens in Belgium.”
Jashari’s performance in domestic and European competitions has turned heads. He’s now not just a future talent — but a present-day centerpiece in Club Brugge’s tactical setup. And Brugge are in no rush to sell. Sources suggest a deal would require an offer of at least €40 million, shattering the current Belgian transfer record set by Igor Thiago’s €33m move to Brentford.
Konstantinos Karetsas: Belgium’s 17-Year-Old Prodigy
Another stunning value leap came for Genk’s 17-year-old phenom, Konstantinos Karetsas, whose market value soared by €7 million, reaching €20 million.
A full Greek international already, Karetsas made headlines when he scored on his debut against Scotland in a UEFA Nations League match.
Despite a €45 million offer reportedly on the table and widespread Premier League interest, Karetsas is expected to remain at Genk for the upcoming season — possibly under a buy-and-loan-back arrangement to aid his development.
“He’s the new golden boy of Belgian football,” says Tamsyn. “Clubs want him now, but Genk want to protect him.”
With natural flair, creative unpredictability, and mature decision-making, Karetsas is now viewed as one of Europe’s most exciting teenage prospects.
Union St. Gilloise: 11 Players Upgraded After Title Win
Union Saint-Gilloise, the newly crowned Jupiler Pro League champions, saw an unprecedented 11 player market value upgrades. Their team-centric approach and consistent performances have finally translated into tangible recognition — both on the pitch and in the market.
Among them is Promise David, who had a breakout campaign as the club’s leading striker.
Promise David: Canada’s Next Big Thing?
At 21, Promise David is now the third-most valuable Canadian men’s national team player, behind only Alphonso Davies and Jonathan David.
His stats in 2024/25 are eye-catching:
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41 games
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25 goals
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5 assists
As a result, his value has climbed from €6 million to €11 million, an 83.3% increase.
Paris FC (newly promoted to Ligue 1) are said to be monitoring him, but Union’s qualification for the Champions League group stage makes staying an appealing option.
“Union players will have to decide between Champions League football or transfers to bigger leagues, possibly without European competition,” Tamsyn explained.
If Promise David impresses on the European stage, €20m+ valuations are well within reach.
Jupiler Pro League: A Breeding Ground for Elite Talent
This market update underscores the JPL’s growing role as:
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A launchpad for elite European talent
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A strategic development league for younger prospects
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A profitable destination for global scouting operations
Some trends emerging from the data:
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Younger players dominate the top increases, showing clubs are investing in development
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Interest from elite clubs (PSG, City, Arsenal) is no longer rare — it’s systematic
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Transfer values are catching up to European counterparts, closing the gap between Belgium and the top five leagues
What This Means for the Summer Window
This market shift will have direct consequences on the 2025 summer transfer market:
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Club Brugge will likely field multiple offers for Jashari — possibly exceeding €40 million.
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Genk might negotiate a massive deal for Karetsas, including a loan-back clause to retain short-term value.
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Union SG must fend off interest for Promise David and other upgraded stars, or risk dismantling a title-winning squad.
With Champions League qualification on the line and valuation momentum on their side, Belgian clubs now hold the cards in negotiations — a reversal from just a few years ago.
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Final Thoughts
Belgium’s Jupiler Pro League has often flown under the radar, but no more. With record-breaking market values, world-class scouting targets, and homegrown stars ready to explode, the league is evolving into a hotbed of talent and financial growth.
From Ardon Jashari’s €32M breakthrough to Promise David’s meteoric rise, the future of Belgian football looks more promising — and more valuable — than ever.
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