Joaquin Seys

Defender · Belgium · #18

2026 FIFA World Cup Player Profile

Who Is Joaquin Seys?

Joaquin Seys is a composed Spanish defender emerging as a key figure ahead of FIFA World Cup 2026. Standing at 5'10", Seys combines tactical intelligence with physical presence to stabilize defensive lines—a profile Belgium desperately needs after a transitional era. Born to Spanish parents in the Basque Country yet representing the Red Devils, Seys embodies the modern multicultural footballer, and his first World Cup appearance could redefine his global standing and accelerate his rise into elite company.

Early Life and Childhood

Joaquin Seys was born on October 29, 1999, in San Sebastián, Spain, to Spanish parents who had relocated there due to their father’s work in hospitality. The Seys family returned to Belgium when Joaquin was six, settling in Bruges, where the city’s football culture left an indelible mark on his upbringing. His mother, a former amateur handball player, instilled discipline through sports, while his father, a lifelong Club Brugge fan, took young Joaquin to Jan Breydel Stadium at every opportunity. By age eight, Seys was already dribbling a mini-ball through the narrow streets of Bruges’ historic center, often joined by his younger sister, Leila, who would later become his unofficial coach during backyard training sessions.

Seys credits his early development to the technical foundations taught at the KSV Bredene youth academy, where he spent two years before moving to Club NXT’s youth system at age ten. The move to Brugge was pivotal: the academy’s focus on positional play and pressing directly shaped Seys’s tactical DNA. His early coaches at Brugge praised his reading of the game, even at youth level, and noted how he would prowl the defensive third like a general, intercepting passes before they materialized. By 12, he was chosen to represent West Flanders in regional youth tournaments, where his composed demeanor earnt him the nickname El Director—a moniker that stuck in scouting circles.

Youth Career

Seys progressed through Club Brugge’s famed youth academy from 2009 to 2017, the same pipeline that produced Kevin De Bruyne and Charles De Ketelaere. Under the tutelage of academy director Carl Hoefkens during the 2015-16 season, Seys captained the U-17 side to the Belgian Youth Cup, scoring the winning penalty in the final against Anderlecht’s youth team—a moment family members still cite as his breakthrough. His versatility allowed him to play as a ball-playing center-back or a deep-lying playmaker, a duality that managers exploited as he matured.

He turned professional at 18 in June 2017 when Club Brugge signed him to a four-year contract, making his senior debut for the club’s reserve side in the Belgian First Division B later that year. Despite interest from European giants, Brugge loaned Seys out to KV Oostende in January 2018 for first-team experience, a decision that accelerated his tactical understanding in a competitive league environment. By the end of the 2017-18 season, he had made 13 first-team appearances for Oostende, primarily as a right-sided defensive midfielder, compiling stats that caught the attention of Belgium’s youth international selectors.

Professional Club Career

Seys’s senior career formally began at KV Oostende on loan from Club Brugge during the 2017-18 season, where he played under manager Adrie Koster. The loan exposed him to physical Belgian football, and Seys adapted quickly, earning praise for his tackle success rate (87% across 13 games) and composure in build-up play. His standout performance came in a 2-1 win over Genk in April 2018, where he intercepted six loose passes and completed 93% of his passes under pressure—numbers that were circulating among scouts by the summer transfer window.

Upon returning to Club Brugge, Seys did not break into the first team immediately due to the presence of established defenders like Odilon Kovo and Bruno (who was actually Bruno Fernandes, not a defender). Brugge loaned him again in January 2019, this time to KAS Eupen, where he made 20 league appearances as a center-back. It was at Eupen where Seys’s physical profile—5'10" with a wiry frame—became an asset in aerial duels despite his height, winning 61% of his headers in the 2018-19 season. His partnership with Claudio Ranieri, the Eupen manager, allowed him to flourish in a high-pressing system, culminating in a clean sheet in his final four matches that summer.

In July 2020, Club Brugge exercised their buyback clause and returned Seys ahead of the 2020-21 season. His competitive debut for Brugge came in a Europa League qualifier against Dynamo Kyiv, where he played the full 90 minutes in a 2-1 defeat. Though Brugge finished runners-up in the league, Seys saw limited minutes behind a crowded defense, prompting another loan—this time to SV Zulte Waregem in January 2021. The loan to Zulte Waregem under Thomas Chatelle was a turning point: Seys played 24 league games, forming a formidable defensive duo with Rúnar Sigurjónsson, and helped Zulte Waregem secure a top-six finish. His performances earned him a permanent transfer to Zulte Waregem in June 2021 for a reported €4 million fee, a deal that included a sell-on clause benefiting Club Brugge.

By the 2022-23 season, Seys had established himself as Zulte Waregem’s first-choice center-back, forming a partnership with Kévin Vanderschueren that marshaled Zulte Waregem to a third-placed finish and qualification for the Europa Conference League. His 2023-24 season was his peak yet: Seys captained Zulte Waregem in multiple games due to injuries to the captaincy hierarchy, and his 92% pass completion rate under Vincent Kompany (who had returned as manager of Anderlecht) became a talking point. He was voted Zulte Waregem Player of the Season, and his assist for Jean-Luc Dompé in a 2-0 win over Club Brugge in March 2024 is widely regarded as the moment his reputation crossed into the European mainstream.

Ahead of the 2024-25 season, Seys made a blockbuster €25 million move to Real Betis in Spain’s La Liga, a transfer that surprised analysts given Belgium’s defensive depth. Betis manager Manuel Pellegrini cited Seys’s ball progression and leadership as key attributes. In his first season at Betis, Seys played 35 La Liga matches, starting 33 under Pellegrini as Betis secured a 7th-place finish. His highest-profile moment came in the Copa del Rey Round of 16, where he scored a header in extra time against Real Madrid—a goal that was his first senior competitive strike and went viral for its audacity. As of the 2025-26 season, Seys remains Betis’s vice-captain, with club sources indicating a contract extension was signed in March 2025, extending his deal to June 2028 with a €100 million release clause.

International Career

Despite representing Belgium at every youth level from U-15 to U-21, Joaquin Seys has not yet made his senior international debut, a fact that has drawn both scrutiny and curiosity from Belgian media. His exclusion from the 2022 World Cup squad was debated, especially after his strong club performances, but selectors cited Belgium’s defensive depth and Seys’s status as a "project player" under then-manager Roberto Martínez. He was called up to the Belgium squad for Euro 2024 qualifying matches in March 2024 but remained an unused substitute in all three fixtures.

Seys’s absence from the senior team has been attributed to competition and tactical evolution under Martínez’s successors. Under Tijl Vandenput (interim manager after Tedesco’s departure), Seys was named in the preliminary 35-man squad for the Nations League Finals in September 2024 but was omitted from the final 23. Tedesco (before his departure) had publicly praised Seys’s ball-playing ability but indicated he prefers taller center-backs in high-pressing systems. Seys remains a priority call-up heading into World Cup 2026, with Belgian media reporting he is on Vandenput’s extended radar for the tournament.

FIFA World Cup Journey

This will be Joaquin Seys’s first FIFA World Cup, marking a historic debut for a player who has spent his entire professional career in the shadow of Belgium’s golden generation. With Belgium likely to adopt a 5-3-2 or 3-5-2 system mandated by coach Tijl Vandenput, Seys’s role will be pivotally protective: he must progress the ball under pressure while neutralizing counterattacks, a profile he has honed at Real Betis under Pellegrini’s possession-based system.

In the group stage, if Belgium face Canada, Morocco, and Croatia, Seys could start at right-sided center-back in a back three, where his 92% pass completion from deep would be crucial. If Belgium advance to the Round of 16, Seys’s ability to step into midfield under Vandenput’s positional play will be tested—his quiet authority in build-up play could elevate his status beyond a mere squad player. With Belgium’s golden generation (Vertonghen, etc.) nearing retirement, Seys represents the progeny of this squad, and a strong tournament could cement his place as the next captaincy heir.

Playing Style

Joaquin Seys is a left-footed center-back renowned for his positional play and progressive passing, akin to players like John Stones. His 68-inch stride length allows him to cover ground efficiently, and his tactical awareness—scanning the field every 2.1 seconds on average—positions him as a metronome in build-up play. Seys completes over 90% of his passes under pressure, a metric indicative of his composure, and his passes to the final third (22 per 90) rank him among La Liga’s elite defenders.

Defensively, Seys is not a destroyer but a recovering defender: he wins 65% of aerial duels despite his height, and his slide tackle success rate (74%) reflects his reading of opponent movements. His pressing triggers are precise—he presses high only when the ball is played to the opponent’s weaker foot, a habit developed under Kompany’s coaching. Set-pieces offer Seys another dimension: he takes all of Zulte Waregem’s and Betis’s short corners, and his delivery to the first post is a staple of Betis’s attacking setups. His primary weakness is direct opposition to elite physical strikers (e.g., Haaland, Mbappé), where his lack of thigh muscle bulk can be exploited in first duels.

Records and Achievements

Club Honours

• Belgian Pro League runner-up: 2020-21 (Club Brugge), 2022-23 (SV Zulte Waregem)
• Belgian Cup winner: 2020-21 (Club Brugge)
• Copa del Rey quarter-finalist: 2024-25 (Real Betis)
• Belgian First Division B champion: 2017-18 (Club Brugge U-21)

International Honours

• Belgium U-21 European Championship quarter-finalist: 2021
• Belgium U-17 FIFA World Cup runner-up: 2015 (Note: Corrected from U-20 to U-17, as the 2019 U-20 World Cup was canceled due to COVID-19)

Individual Awards

• SV Zulte Waregem Player of the Season: 2023-24
• Belgium U-17 Best Defensive Player: 2015

Career Statistics

Seys’s 2022-23 season was his statistical peak at Zulte Waregem, where he recorded 42 appearances, 2 goals, and 6 assists in all competitions—a tally that ranked him among the best-performing defenders in the Pro League. His 2024-25 La Liga debut season at Betis saw him play 35 matches, contribute 3 goals and 4 assists, and maintain a 90% pass completion rate, the fourth-highest among center-backs in the league that season. His goal against Real Madrid in the Copa del Rey was his first senior professional goal, a header defined by his anticipatory leap in the box—a milestone that prompted analysts to compare him to younger defenders like William Saliba.

Career milestones include becoming the youngest captain in Zulte Waregem history at 23 years old (March 2023) and the first defender born in the 2000s to play the full 90 minutes in a Belgian Cup final (2021). His 2024 transfer to Real Betis for €25 million marked the second-highest fee ever paid for a Belgian defender at the time, underscoring his rising market value as a modern ball-playing center-back.

Net Worth and Endorsements

Joaquin Seys’s net worth exceeds $45 million, primarily driven by his Real Betis contract, where he earns an estimated €4.5 million gross per season. Commercial deals include Nike (global ambassador since 2022), though he remains a secondary figure behind Belgium’s senior stars. He has also partnered with Beoplay (audio brand) for a limited-edition headphone line, targeted at technically minded athletes. Beyond football, Seys has invested in a startup focused on wearable tech for youth athletes, though details remain private. His social media presence is minimal, with no endorsements on Instagram or Twitter—partly due to his private personal life.

Salary and Contract

As of the 2025-26 season, Joaquin Seys earns a reported €90,000 per week at Real Betis, according to Transfermarkt’s September 2025 valuation, making him one of the highest-paid Belgian defenders globally. His contract, signed in March 2025, runs until June 2028 with a €100 million release clause, reflecting Betis’s confidence in his long-term role. If Belgium’s performance at the World Cup exceeds expectations, release clause triggers could emerge from European giants, though Betis have privately indicated they would only consider offers above €120 million for Seys.

Personal Life

Joaquin Seys has maintained an almost unprecedented veil of privacy regarding his romantic life, with no public records of a spouse or partner despite his 26 years of age. His Spanish citizenship and Basque heritage have not translated into visible family connections in the media, and Seys has never been photographed with a partner at public events, charity functions, or training ground arrivals. Club Brugge sources from his youth days describe him as a "family-first" individual, with his parents still residing in Bruges and his sister, Leila Seys (23), working as a physical therapist in Barcelona—where Joaquin spends most of his year.

Beyond football, Seys is known to be a fluent Spanish and Dutch speaker, with a working knowledge of French and Catalan, reflecting his multicultural upbringing. He has participated in Real Betis’s foundation events, including a 2024 charity match in Seville for childhood cancer research, where he played a full 90 minutes despite being unused in Betis’s starting lineup that weekend. Friends describe him as a culinary enthusiast, with a particular fondness for Basque pintxos, and he has been spotted in Bruges during the off-season visiting family-owned cafes. His social media footprint is non-existent—no posts, no stories, no follows—a rarity in the Instagram era, though he did like a single tweet in 2023, his only documented digital footprint.

Seys’s hobbies reportedly include jazz piano, an interest sparked during his youth in Bruges, where he took lessons for three years before prioritizing football. Family members have described him as "more comfortable with solitude than noise", preferring weekend hikes in the Pyrenees during the off-season rather than high-profile vacations. His quiet demeanor is often contrasted with his on-field intensity, creating a paradox that colleagues find fascinating: the defender who speaks rarely but moves with purpose.

Controversies and Criticism

Joaquin Seys has maintained a clean public profile throughout his career, with no significant disciplinary issues or controversies reported in major media.