Konstantinos Karetsas
Konstantinos Karetsas is a Greek international attacking midfielder who plays for Borussia Dortmund.
Born in Genk, Belgium, on 19 November 2007 to Greek parents, Konstantinos Karetsas developed into one of the most prominent young attacking players to emerge from Belgian football in his generation.
Konstantinos Karetsas entered the KRC Genk academy at the age of eight.
Apart from a period with Anderlecht between 2020 and 2023, his development was closely associated with Genk, a club with a strong record of producing players for senior European football.
His progression into the professional game came remarkably early.
Konstantinos Karetsas made his debut for Jong Genk in Belgium’s second division in August 2023 at only 15 years old. During the same season, he progressed into KRC Genk’s first-team structure and made his Belgian Pro League debut.
The following stages of his development established him as considerably more than an academy prospect.
Operating primarily as an attacking midfielder while also being capable of playing from the right, he became a regular senior player for Genk.
His game is characterised by close control, creativity, dribbling in confined areas and an ability to find teammates with the final pass.
During his final full season with Genk, he made 34 Belgian Pro League appearances and recorded 11 assists.
He also gained substantial European experience in the UEFA Europa League, where Genk reached the Round of 16 and Konstantinos Karetsas recorded two goals and five assists across 11 appearances.
His international pathway is equally distinctive.
Although born in Belgium and previously involved with Belgian youth national teams, Konstantinos Karetsas chose to represent Greece at senior international level.
He made his Greece debut against Scotland in March 2025.
Three days later, in only his second senior international appearance, he scored during Greece’s 3-0 victory at Hampden Park.
At 17 years, four months and four days old, he became the youngest goalscorer in the history of the Greece men’s senior national team.
By August 2026, Konstantinos Karetsas had accumulated more than 70 Belgian top-flight appearances and ten senior international caps for Greece despite still being only 18.
Borussia Dortmund completed his transfer from KRC Genk on 3 August 2026. The German club signed him to a five-year contract running until 30 June 2031 and assigned him the number 19 shirt.
For collectors, this move also creates a useful division in his football-card chronology. Early KRC Genk cards document his professional breakthrough and emergence as a Greece international, while Borussia Dortmund releases represent the beginning of the next stage of his career.
Official Card Manufacturers
Most modern football trading cards are produced by the world’s leading licensed manufacturers. To explore current releases, official product information and checklists, visit the official websites of Topps and Panini.
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Official Card Manufacturers
Most modern football trading cards are produced by the world’s leading licensed manufacturers. To explore current releases, official product information and checklists, visit the official websites of Topps and Panini.
Panini Official Website · Topps Official Website
What collectors should look for
Exact identification should be the starting point when cataloguing Konstantinos Karetsas football cards. For 2025/26 Topps Museum Collection UEFA Club Competitions, collectors can use several confirmed checklist references. The Hobby base card is #2 and carries an official Rookie designation. The autograph checklist includes AA-KO for Archival Autographs and MRA-KK for Museum Rookie Autographs. Additional premium checklist entries include MMA-KK for Museum Marbleized Autographs, RAR-KK for Museum Rookie Autograph Relics and LL-KK for Legacy Laces Autograph Relics. Collectors should preserve these exact subset names when cataloguing cards. "Autograph", "rookie autograph", "autograph relic" and "memorabilia" are not interchangeable descriptions. Serial numbering should also be recorded precisely. A card should only be described as /99, /50, /25, /10, /5, /1 or another stated print run when that numbering is physically present on the card or confirmed by official manufacturer documentation. Marketplace scarcity alone should never be used to infer a print run. The same principle applies to memorabilia. Collectors should reproduce the manufacturer's wording accurately rather than assuming that a relic is match-worn, player-worn or associated with a particular event unless the card or manufacturer specifically establishes that provenance. Condition assessment can be especially important with premium products. Thick-stock autograph and memorabilia cards should be checked carefully for corner and edge wear. Glossy surfaces should be examined under angled light for scratches, indentations, print lines and other production defects. Before submitting a card for professional grading, collectors should verify exact set identification, authenticity, serial numbering and physical condition.
