Vasilije Kostov
Agent, Salary, Contract, Club and Profile
Serbia €26mm
Key Facts
Date of birth: 11.05.2008
Nationality: Serbia
Current club: Red Star Belgrade
Position: Attacking Midfielder
Height: 1.76m
Current market value: €26mm
Represented by: Unnak Sports
Main agent: Nikola Kolarov
Reported salary: Not publicly disclosed
Contract expires: 30.06.2028
About
Vasilije Kostov is a Serbian attacking midfielder who plays for Red Star Belgrade and the Serbia national team. A technically gifted and confident playmaker, he is known for his shooting ability, creativity between the lines and willingness to take responsibility in advanced areas.
Born in Belgrade, Kostov joined Red Star’s academy at a young age and progressed through the club’s youth structure before making his senior breakthrough as a teenager. His transition into first-team football accelerated dramatically during the 2025/26 season, when he became a regular starter and one of the most productive young midfielders in Serbian football.
Kostov scored 12 league goals during the 2025/26 campaign and also made an impact in European competition. His goal against FC Porto made him the youngest Red Star player ever to score in European competition.
At international level, Kostov represented Serbia throughout the youth pathway before making his senior debut in 2025. He has since remained involved with the national team and is regarded as one of the leading talents of Serbia’s new generation.
Representation
Agency: Unnak Sports
Main representative: Nikola Kolarov
Jurisdiction: Serbia and international markets
FIFA licence status: Not publicly confirmed
Linked with Kostov since: His Red Star first-team breakthrough
Other notable clients: Nikola Stanković and several Serbian-based professional players
Related agency page: https://www.footballagencies.com/football-agency/unnak-sports/
Kostov is represented by Unnak Sports, a player-management company with a strong focus on Serbian football and emerging domestic talent.
The agency represents Kostov during a particularly important phase of his career, with his performances for Red Star attracting increasing attention from major European clubs.
His rapid development, senior international status and strong European performances have already generated significant transfer interest, making his next career decision particularly important for his long-term development.
Career timeline
2014: Began his football development with Royal FC
2016: Joined Red Star Belgrade’s academy
2022: Represented Serbia at U15 level
2023: Progressed into the Serbia U16 national team
2024: Represented Serbia at the UEFA European Under-17 Championship
2024: Named in the UEFA European U17 Championship Team of the Tournament
2024/25: Became one of Red Star’s leading UEFA Youth League players
2024/25: Made his first senior appearances for Red Star Belgrade
July 2025: Permanently promoted into Red Star’s first-team squad
2025/26: Established himself as a regular senior starter
October 2025: Scored against FC Porto in the UEFA Europa League
October 2025: Became Red Star’s youngest-ever goalscorer in European competition
October 2025: Extended his Red Star contract until 2028
2025: Made his senior Serbia debut
2025: Became the youngest captain in Red Star Belgrade history
December 2025: Named Serbia’s Most Promising Footballer of the Year
2025/26: Scored 12 goals and registered seven assists in the Serbian SuperLiga
2026/27: Started the league campaign with four goals in his opening seven appearances
2026/27: Continued gaining UEFA Champions League and Europa League experience
Transfer history
2016 – Royal FC to Red Star Belgrade academy – Youth transfer
2025 – Red Star Belgrade academy to first team – Promoted into the senior squad
2025 – Red Star Belgrade contract extension – New agreement until June 2028
Kostov has spent almost his entire development pathway at Red Star Belgrade and has not yet completed a senior professional transfer.
His breakthrough during the 2025/26 season significantly increased his market value and international profile. His productivity from attacking midfield, combined with his age and European experience, has attracted interest from several major European clubs.
Red Star strengthened its position by extending his contract until 2028 in October 2025. By the summer of 2026, reported interest included clubs from Serie A and other major European leagues, with Red Star placing a significant valuation on its academy graduate.
Playing profile
Kostov is primarily an attacking midfielder but can also operate as a central midfielder or from the right side of the attack.
One of his defining qualities is his shooting ability. He is comfortable striking from outside the penalty area and frequently looks to create shooting opportunities when receiving between the lines.
Kostov also has excellent technical confidence. He receives the ball cleanly under pressure and is willing to turn towards goal rather than automatically recycling possession.
His movement into scoring positions is particularly impressive for a midfielder. He regularly arrives around the edge of the penalty area and has developed a strong understanding of when to attack spaces beyond the striker.
He is also capable of carrying possession forward and beating opponents through changes of direction rather than relying purely on speed.
Perhaps his most striking quality is his personality. Even as a teenager, Kostov has shown a willingness to take penalties, attempt difficult passes and assume creative responsibility in important domestic and European matches.
His combination of goalscoring, technique, confidence and senior experience gives him the profile of a modern attacking midfielder capable of developing into a high-level number ten or advanced number eight.
Key strengths
Long-range shooting
Goalscoring from midfield
Close control
Creativity between the lines
Progressive ball carrying
Final-third movement
Technical confidence
Combination play
Passing vision
Press resistance
Ability to play as a number eight or ten
High long-term potential
