Konstantinos Karetsas
Agent, Salary, Contract, Club and Profile
Greece €35mm
Key Facts
Date of birth: 19.11.2007
Nationality: Greece
Current club: Borussia Dortmund
Position: Attacking Midfielder / Right Winger
Height: 1.73m
Current market value: €35mm
Represented by: Stirr Associates
Main agent: Stijn Francis
Reported salary: €3.58m gross per year
Contract expires: 30.06.2031
About
Konstantinos Karetsas is a Greek attacking midfielder who plays for Borussia Dortmund and the Greece national team. Born in Genk, Belgium, he is a left-footed creator known for his close control, dribbling, vision and ability to find solutions in tight spaces.
Karetsas developed through the academies of Genk and Anderlecht before returning to Genk in 2023. His progression was extremely fast: he entered professional football at only 15 and became the youngest goalscorer in Belgian professional football.
After establishing himself as one of the most exciting young players in the Belgian Pro League, Karetsas moved to Borussia Dortmund in August 2026. He signed a five-year contract and immediately became part of the club’s senior attacking rotation.
Although he represented Belgium through several youth levels, including U21, Karetsas chose to represent Greece at senior level. He made his debut in March 2025 and became the youngest goalscorer in Greece national-team history only three days later.
Representation
Agency: Stirr Associates
Main representative: Stijn Francis
Agency founder: Stijn Francis
Headquarters: Keerbergen, Belgium
Jurisdiction: Belgium and international markets
FIFA licence status: FIFA-licensed agents on staff
Linked with Karetsas since: His breakthrough period at Genk
Also represents: Loïs Openda, Bilal El Khannouss, Bart Verbruggen, Nathan Ngoy and Sebastiaan Bornauw
Related agency page: Stirr Associates
Karetsas is represented by Stirr Associates, the Belgian boutique agency founded by former professional footballer and lawyer Stijn Francis.
Francis was involved in the negotiations surrounding Karetsas’s move from Genk to Borussia Dortmund in the summer of 2026. The transfer became the biggest outgoing deal in Genk’s history.
Stirr Associates operates with a strong presence in Belgium and across major European leagues, combining transfer and contract negotiation with long-term career planning, legal support and financial guidance.
Career timeline
2013: Began playing with AS VV
2014: Joined KRC Genk’s academy
2020: Moved to Anderlecht’s academy
January 2023: Returned to KRC Genk
August 2023: Made his professional debut for Jong Genk at only 15
September 2023: Became the youngest goalscorer in Belgian professional football
2023/24: Made 20 appearances for Jong Genk
May 2024: Made his Genk first-team debut
May 2024: Made his first senior start against Royal Antwerp and registered an assist
2024/25: Established himself as a regular Genk first-team player
December 2024: Became Genk’s youngest-ever top-flight goalscorer
March 2025: Chose to represent Greece at senior international level
March 2025: Made his Greece debut against Scotland
March 2025: Scored against Scotland and became Greece’s youngest-ever senior goalscorer
November 2025: Extended his Genk contract until 2029
2025/26: Registered 11 assists in 34 Belgian league appearances
2025/26: Recorded two goals and five assists during Genk’s UEFA Europa League campaign
August 2026: Joined Borussia Dortmund
August 2026: Signed a five-year contract until 2031
2026/27: Entered Dortmund’s first-team rotation and featured in the Bundesliga and UEFA Champions League
Transfer history
2020 – KRC Genk academy to Anderlecht academy – Youth transfer
2023 – Anderlecht academy to KRC Genk – Youth transfer
2023 – KRC Genk academy to Jong Genk – Promoted into professional football
2024 – Jong Genk to KRC Genk first team – Promoted to the senior squad
2025 – KRC Genk contract extension – New agreement until June 2029
2026 – KRC Genk to Borussia Dortmund – Permanent transfer – Reported fee: approximately €30–35m – Contract until June 2031
Karetsas returned to Genk after two and a half years with Anderlecht and quickly demonstrated that he was capable of playing significantly above his age group.
His breakthrough in the Belgian first division attracted interest from several leading European clubs, but Dortmund emerged as his preferred destination.
The transfer represented a record sale for Genk and continued Dortmund’s established strategy of recruiting elite young attacking talent with significant development potential.
Playing profile
Karetsas is primarily an attacking midfielder but can also operate from the right wing. As a left-footed player, he is particularly comfortable receiving in the right half-space before moving centrally.
His biggest strength is his technical quality in tight areas. Karetsas can receive under pressure, manipulate the ball with very small touches and escape defenders through rapid changes of direction.
He is also a highly creative passer. His vision allows him to identify runners behind defensive lines, while his ability to disguise passes makes him particularly dangerous around the edge of the penalty area.
From the right, Karetsas can move onto his stronger left foot to create or shoot. He is equally capable of remaining wide and using his dribbling ability to beat defenders one-on-one.
His low centre of gravity and balance make him difficult to dispossess despite his relatively small physical frame.
Karetsas also plays with unusual confidence for his age. He actively looks for possession in advanced areas and is willing to attempt decisive actions rather than simply retaining the ball.
Key strengths
Close control
One-on-one dribbling
Creativity between the lines
Left-footed passing
Through balls
Progressive ball carrying
Quick changes of direction
Press resistance
Vision in the final third
Combination play
Ability to play as a number ten or right winger
High long-term potential
