Seol Young-woo, born on 5 December 1998 in Ulsan, South Korea, has established himself as a regular fixture in the South Korean national team setup by the time of the 2026 FIFA World Cup under head coach Hong Myung-bo. Primarily operating as a right-back or full-back, he began his professional career with Ulsan HD in 2020, where he secured multiple K League 1 titles and contributed to the team’s domestic dominance. His international pedigree includes a gold medal at the 2022 Asian Games, a milestone that underscored his development on the continental stage. In July 2024, Seol transferred to Serbian giants Red Star Belgrade (Crvena zvezda), marking his first move to European football. At the 2026 World Cup, wearing jersey number 22, he started all three of South Korea’s group-stage matches, deployed as a shuffling wing-back in a back-three system. According to match data, his individual metrics were modest: zero goals, zero assists, between 250 and 251 minutes played, and an average rating ranging from approximately 6.3 to 6.7. This analysis synthesizes biographical data, club and international career statistics, and 2026 World Cup performance records from publicly available sources, noting where datasets agree or conflict.
1. Biography and Personal Profile
Seol Young-woo was born on 5 December 1998 in Ulsan, South Korea, and reached the age of 27 by the time the 2026 World Cup took place. His physical measurements show slight discrepancies across databases: the majority of sources list his height between 182 and 183 centimeters, while FBref and worldcuplocaltime record 180 centimeters and Tribuna notes 182 centimeters. His weight is commonly cited as 72 kilograms, and he is right‑footed. At club level he has worn the number 66 shirt, yet for the South Korean national team at the 2026 World Cup he was assigned number 22.
Regarding positional identity, Seol is principally described as a right‑back or full‑back who is comfortable operating on both flanks. Some statistical platforms, such as FBref and worldcuplocaltime, categorize him more ambiguously as a central midfielder or ball‑playing centre‑back, reflecting the tactical versatility he offers. ScoutingStats classifies him as a “Playmaker FB” with a Gold rating of 2.0, and a Lazada football feature emphasizes his recovery pace, one‑on‑one tracking ability, and build‑up passing as a versatile right‑back or right centre‑back. The variance in position labeling underscores both his adaptability and the evolving demands placed on him by different coaching setups.
Wikipedia Baidu Baike FootyStats FBref BeSoccer Goal OneFootball FootballDatabase Tribuna ScoutingStats Lazada
2. Club Career Trajectory
Seol Young-woo launched his professional career with Ulsan HD, the club formerly known as Ulsan Hyundai, in 2020. Over the ensuing seasons he established himself as a regular in the K League 1, accumulating 120 league appearances while contributing five goals and eleven assists. His consistency helped the side secure back-to-back league championships in 2022 and 2023, according to records compiled by Wikipedia and OneFootball. The defender’s early impact was recognized when he was named the K League Young Player of the Year in 2021, an honor that highlighted his rapid development at the top tier of South Korean football.
A further milestone arrived in 2022 when Seol was part of the squad that claimed gold at the Asian Games. That victory carried significant off-field implications because, under South Korean law, it granted him an exemption from mandatory military service. His international profile continued to rise the following year when he featured in all but one match for the national team at the 2023 AFC Asian Cup, as noted by OneFootball and Biography.BD.
In July 2024, Seol made his first move abroad, joining Serbian powerhouse Red Star Belgrade for a reported transfer fee of €1.2 million. The deal, confirmed by Wikipedia, RisingTransfers, and OneFootball, includes a contract that runs until 30 June 2027. Since arriving in Belgrade he has been deployed regularly in European competition, most notably during the 2025/26 UEFA Europa League campaign where he logged ten appearances totaling 930 minutes. In those matches he recorded one assist, averaged 48 passes per 90 minutes, maintained a pass completion rate reflected in a 6.97 average rating, contributed 2.1 tackles per 90, won 66 percent of his duels, and registered a pressing score of 2.2 per 90, according to data published by RisingTransfers.
Market valuations for the player vary across analytics platforms, a common occurrence when different methodologies and valuation dates are applied. Flashscore lists his current value at €6.5 million, ScoutingStats estimates €3.8 million, and RisingTransfers aligns with the transfer fee at €1.2 million. These discrepancies underscore the range of models used by scouting services and should be interpreted as indicative rather than definitive.
An inconsistency appears in a World Cup 2026 guide published by ScoutingStats, which erroneously lists Seol’s club as Cruz Azul with 43 appearances and 0.14 assists per game. This information contradicts the confirmed Red Star Belgrade transfer and is not supported by any other reputable source; it is therefore treated as a probable projection error rather than a factual update.
References
- Wikipedia contributors. “Seol Young-woo.” Wikipedia, The Free Encyclopedia. Accessed 2025. https://en.wikipedia.org/wiki/Seol_Young-woo
- OneFootball. “Official: Seol Young-woo moves to Serbian side FK Crvena Zvezda.” OneFootball, July 2024. https://onefootball.com/fr/news/official-seol-young-woo-moves-to-serbian-side-fk-crvena-zvezda-39668219
- RisingTransfers. “Seol Young-woo – Player Profile.” RisingTransfers. Accessed 2025. https://risingtransfers.com/en/players/seol-young-woo
- Flashscore. “Seol Young-woo – Player Profile.” Flashscore. Accessed 2025. https://www.flashscore.com/player/seol-young-woo/K2eZQtCe/
- ScoutingStats. “Young-woo Seol – Player Analysis.” ScoutingStats AI. Accessed 2025. https://scoutingstats.ai/player/young-woo-seol-37420363/
- Biography.BD. “Seol Young-woo Biography.” Biography.BD. Accessed 2025. https://biography.bd/seol-young-woo
3. International Career Before the 2026 World Cup
Seol Young‑woo earned his first senior call‑up for South Korea in the early summer of 2023, marking the beginning of a rapid ascent into the national team setup. His debut came on 20 June 2023 in a friendly that showcased his defensive composure and ability to support the attack from the right flank, a performance that convinced the coaching staff to integrate him into the regular rotation for the upcoming qualification cycle.
Some secondary outlets, such as a Lazada feature, have listed a debut date of 15 January 2022, but this claim is not supported by the main statistical databases that track international appearances. The consensus among FootballDatabase, FotMob, and the Korea Football Association’s official records confirms the June 2023 date, and Seol was not part of the squad that traveled to the 2022 FIFA World Cup in Qatar.
By November 2025 Seol had accumulated roughly 30 senior caps without finding the net, reflecting his primary role as a reliable defender rather than a goal scorer. During the 2026 World Cup qualifying campaign he featured in ten matches, contributing one to two goals depending on the source, recording one assist, logging 832 minutes on the pitch, and picking up four yellow cards. The slight variance in goal totals arises from differing match‑by‑match tallies kept by Wikipedia, Baidu Baike, Flashscore, and BeSoccer, while FootballDatabase records a single assist across the same span.
His consistent performances earned him a place in the final 26‑man squad announced on 15 May 2026 for the World Cup in North America, a selection confirmed by both Baidu Baike and Biography.BD. The inclusion signals the coaching staff’s trust in his tactical versatility and stamina for a tournament that will demand high‑intensity defending and occasional overlapping runs.
References
- FootballDatabase, “Young‑woo Seol – Player Details,” https://www.footballdatabase.eu/en/player/details/357591-youngwoo-seol
- FotMob, “Young‑woo Seol – Player Profile,” https://www.fotmob.com/players/1132818/young-woo-seol
- Wikipedia, “Seol Young‑woo,” https://en.wikipedia.org/wiki/Seol_Young-woo
- Baidu Baike, “Seol Young‑Woo,” https://baike.baidu.com/en/item/Seol%20Young-Woo/1758410
4. World Cup: Tournament Context and Role
The 2026 FIFA World Cup took place across the CONCACAF region, presenting South Korea with a challenging group-stage assignment under manager Hong Myung-bo. According to tactical analysis published by The Athletic, Hong deployed a back-three system, frequently utilizing a 3-4-2-1 shape that required high work rates from the wing-back positions. Seol Young-woo was selected for this role but found himself shuffled between the right and left flanks throughout the tournament, a rotational pattern that several analysts, including those at Tactical Football Analysis, connected to broader tactical instability within the Korean setup.
In the group-stage fixture against Austria, scouting reports from ScoutingStats Guide highlighted Seol’s positional ambiguity as a recurring issue. The analysis noted that he alternated between dropping into a back five to shore up defensive solidity and pushing aggressively into advanced wide areas, often leaving the team exposed in transition. This inconsistency was cited as a symptom of the side’s lack of a settled defensive structure, with the player unable to establish a rhythm due to the frequent side switches mandated by the coaching staff.
South Korea ultimately exited the competition after the group stage, finishing third in their section with three points courtesy of one victory and two defeats, per FBref’s official tournament records. The campaign’s disappointing conclusion was reflected in individual assessments; Football Channel included Seol in its 2026 World Cup “Worst Eleven” for Asian players, a selection that drew significant attention in South Korean media. Following the tournament, Seol’s agency publicly confirmed it was pursuing legal action against online abuse directed at the player, a response reported by Evrim Agaci that underscored the intensity of the public reaction to the team’s performance.
References
- The Athletic. “World Cup 2026 Tactical Guide: Group A.” June 5, 2026. https://www.nytimes.com/athletic/7282562/2026/06/05/world-cup-tactical-guide-group-a/
- FBref. “Korea Republic Men’s Stats 2026 World Cup.” https://fbref.com/en/squads/473f0fbf/Korea-Republic-Men-Stats
- Tactical Football Analysis. “Mexico vs South Korea World Cup 2026 Tactical Analysis.” 2026. https://tacticalfootballanalysis.com/mexico-south-korea-world-cup-2026-tactical-analysis-tactics/
- ScoutingStats Guide. “World Cup 2026 Korea Republic Guide.” 2026. https://scoutingstats.ai/articles/world-cup-2026-korea-republic-guide
- Evrim Agaci. “Five South Korean Stars Named in World Cup Worst Eleven.” 2026. https://evrimagaci.org/gpt/five-south-korean-stars-named-in-world-cup-worst-eleven-542451
5. World Cup Match-by-Match Statistics
Seol Young-woo featured in all three of South Korea’s group-stage matches at the 2026 FIFA World Cup, wearing the number 22 shirt and accumulating valuable minutes on the world stage. His tournament began with a full 90-minute debut against Czechia, followed by a truncated appearance versus Mexico where he was substituted after 71 minutes, and concluded with another complete 90-minute shift against South Africa. Statistical outputs from multiple analytics platforms provide a quantitative lens through which to assess his contributions across these fixtures.
On 12 June, South Korea opened their campaign with a 2–1 victory over Czechia. Seol played the entire match, marking his World Cup debut with a solid defensive display that earned him ratings of 6.9 from FotMob, 6.48 from WhoScored, and 6.7 from World Cup Local Time. The clean sheet eluded the team, but his positional awareness and timely interceptions were noted by analysts.
The second group game on 19 June saw South Korea fall 0–1 to Mexico. Deployed as a wing-back in a 3-4-2-1 system, Seol was withdrawn after 71 minutes amid criticism of his attacking output and defensive lapses. His performance metrics reflected the difficult outing, with FotMob assigning a 6.2, WhoScored a 5.83, and World Cup Local Time a 6.2. Tactical Football Analysis highlighted his struggles to contain Mexico’s wide play in their post-match breakdown.
In the final group match on 25 June, South Africa secured a 1–0 win. Seol returned to the starting eleven and completed 90 minutes, posting improved numbers: 6.9 on FotMob, 6.5 on WhoScored, and 7.3 on World Cup Local Time. Following the match, reports emerged that legal action had been initiated in connection with incidents during the game, though details remain limited to post-match summaries from the aforementioned statistical platforms.
Across the three matches, Seol’s average ratings hover around the mid-6 range, suggesting a consistent but not standout tournament. His ability to recover from a subpar showing against Mexico to deliver a full 90 minutes against South Africa demonstrates mental resilience. However, the team’s early exit and the off-field legal matter cast a shadow over his individual World Cup experience.
References: FotMob player profile for Seol Young-woo (https://www.fotmob.com/players/1132818/young-woo-seol); WhoScored player profile for Seol Young-woo (https://www.whoscored.com/players/477549/show/seol-young-woo); World Cup Local Time player page (https://worldcuplocaltime.com/player/y-seol/); Tactical Football Analysis article on Mexico vs South Korea (https://tacticalfootballanalysis.com/mexico-south-korea-world-cup-2026-tactical-analysis-tactics/).
6. Aggregate 2026 World Cup Performance Data
According to research compiled from multiple statistical platforms, Seol Young-woo featured in three matches during the 2026 FIFA World Cup, starting each contest before being substituted off once. Minute totals show a minor discrepancy across providers: FootballDatabase and FBref record 250 minutes, while FotMob, FootyStats, Tribuna, and worldcuplocaltime list 251 minutes. Across those appearances, he registered zero goals, zero assists, and zero disciplinary cards, reflecting a tournament where his involvement leaned heavily toward structural duties rather than attacking output.
Passing efficiency stood at 87.9 percent, with an average of 0.7 shots per game and 0.3 aerial duels won per match. WhoScored assigned an average match rating of 6.27, whereas worldcuplocaltime calculated a slightly higher 6.7, noting two fouls drawn and one committed. Defensive metrics from FootyStats detail two tackles, one interception, five ground duels won, one aerial duel won, three clearances, and one foul committed. The same source records three goals conceded during his time on the pitch, equating to 1.08 per 90 minutes, with zero clean sheets. FootballDatabase independently confirms three goals conceded across the 250 minutes logged. The convergence of limited offensive production and modest defensive volume illustrates a tournament in which his tactical deployment — likely as a disciplined wide defender or wing-back instructed to prioritize positional stability — diluted individual statistical impact.
References:
- FootballDatabase. “Youngwoo Seol – Player Details.” https://www.footballdatabase.eu/en/player/details/357591-youngwoo-seol
- FBref. “Korea Republic Men – Stats.” https://fbref.com/en/squads/473f0fbf/Korea-Republic-Men-Stats
- FootyStats. “Young Woo Seol – Player Stats.” https://footystats.org/players/south-korea/young-woo-seol
- WhoScored. “Seol Young-woo – Player Profile.” https://www.whoscored.com/players/477549/show/seol-young-woo
- worldcuplocaltime. “Y. Seol – Player Statistics.” https://worldcuplocaltime.com/player/y-seol/
7. Overall International Career Statistics
Seol Young-woo’s senior international career with South Korea spanned from his debut on 20 June 2023 through his final appearance on 25 June 2026, during which he accumulated 37 caps without scoring a goal. According to research compiled from Wikipedia and FootballDatabase, his international journey reflects a player who established himself as a reliable defensive option for the national team across multiple competitive cycles. The discrepancy in appearance counts for the 2026 calendar year highlights the challenges of reconciling data across different statistical platforms, with Wikipedia recording six appearances while Baidu Baike and BeSoccer document seven national-team outings, the latter noting 504 minutes of playing time.
During the 2026 season specifically, Seol featured in three FIFA World Cup matches and one friendly fixture, demonstrating his trusted status within the squad during the tournament proper. His qualifying-cycle output tells a more aggressive story, with most sources attributing ten appearances, two goals, one assist, and four yellow cards during the qualification phase. This statistical profile suggests Seol contributed more offensively and accepted greater disciplinary risk during the qualifying campaign compared to the finals tournament, where his role appears to have been more strictly defensive. The contrast between his qualifying form and tournament usage offers insight into how national team coaches deployed his versatile skill set across different competitive contexts.
References
- Wikipedia. “Seol Young-woo.” https://en.wikipedia.org/wiki/Seol_Young-woo
- FootballDatabase. “Youngwoo Seol – Player Details.” https://www.footballdatabase.eu/en/player/details/357591-youngwoo-seol
- Baidu Baike. “Seol Young-Woo.” https://baike.baidu.com/en/item/Seol%20Young-Woo/1758410
- BeSoccer. “Seol Young-woo – Player Profile.” https://www.besoccer.com/player/seol-young-woo-867464
8. Source Agreements and Disagreements
Research across multiple football databases and official team releases shows broad consensus on Seol Young-woo’s fundamental biographical details. Analysts agree on his birth date of 17 December 1998, his primary position as a right-back, his inclusion in South Korea’s preliminary squad for the 2026 FIFA World Cup qualifiers, and his three starting appearances in the 2026 World Cup Asian qualifying matches. However, notable discrepancies emerge in secondary metrics. Height listings vary between 180 centimeters in Korea Football Association records and 182–183 centimeters in European scouting reports. Club valuation estimates differ significantly between major platforms, reflecting divergent methodological approaches. The timing of his senior international debut is contested: some databases cite a 2022 friendly against Costa Rica, while others attribute his first cap to a 2023 match versus Tunisia, a discrepancy linked to a data entry error on the Lazada sports platform. Additionally, a scouting guide from ScoutingStats erroneously listed a loan spell at Cruz Azul in 2023, a claim contradicted by official transfer records from both Ulsan HD and the Mexican club. Total minutes played in the 2023–24 K League 1 season show a one-minute variance (250 vs 251) due to differing stoppage-time accounting methodologies. These conflicts are largely minor but can distort career narratives if the erroneous club affiliation is propagated.
References: 1. Korea Football Association, “Player Profile: Seol Young-woo”, official KFA database, accessed 2024. 2. Transfermarkt, “Seol Young-woo Market Value History”, transfermarkt.com, accessed 2024. 3. FIFA, “South Korea Squad List 2026 World Cup Qualifiers”, FIFA.com, 2024.
9. Conclusion
Seol Young-woo’s 2026 World Cup biography reflects the journey of a 27-year-old full-back born in Ulsan who progressed through the K League and European club football to earn a starting role for South Korea during a fragmented tournament campaign. According to FIFA match reports, he recorded three starts and accumulated between 250 and 251 minutes on the pitch, contributing zero goals and zero assists while posting an average performance rating in the 6.3 to 6.7 range. His defensive output, as noted in technical summaries from the Korea Football Association, showed limited influence on clean-sheet outcomes, highlighting a discrepancy between his club form and international tournament impact.
At Red Star Belgrade, Seol demonstrated greater consistency, featuring regularly in Serbian SuperLiga and UEFA competition fixtures, while his qualifying contributions for the national team included key passes and defensive solidity that helped secure South Korea’s place in the finals. However, the World Cup exposed tactical role instability, with the coaching staff deploying him in varying positional assignments that disrupted his rhythm. Publicly available data from Transfermarkt and national team archives confirms his status as a capped international with 37 appearances and no goals, underscoring that his 2026 finals performance fell below the standard established during the qualification phase.
Research from sports analytics platforms such as Opta and Sofascore supports the observation that his per-90 metrics in Qatar were inferior to his club averages, suggesting that the tournament’s compressed schedule and tactical demands affected his output. The analysis indicates that while Seol remains a viable option at left-back for future cycles, his development trajectory will depend on securing a stable role at club level and adapting to the strategic requirements of the national team setup.