PLAYER SNAPSHOT: At a Glance
| Category | Details |
|---|---|
| Full Name | Seol Young-woo (설영우) |
| Date of Birth | 5 December 1998 (Age: 27) |
| Place of Birth | Ulsan, South Korea |
| Nationality | South Korean |
| Height | 1.83 m |
| Position | Full-back / Wing-back |
| Preferred Foot | Right |
| Squad Number | #66 (Red Star), #66 (South Korea) |
| Current Club | Red Star Belgrade |
| Previous Clubs | Ulsan HD |
| International Caps | 35 |
| International Goals | 0 |
| World Cup Appearances | 2026 |
| Market Value | €3 million |
The Frozen Moment
Education City Stadium, Al Rayyan. January 30, 2024. AFC Asian Cup quarter-final. South Korea versus Australia. Extra time was winding down. Seol Young-woo had already run an astonishing 15.54 kilometres—more than any player on the pitch. He had taken only two days of rest since the round of 16, yet here he was, still running.
Then came the cross. Perfectly weighted from the right flank, it found Cho Gue-sung, whose towering header crashed into the back of the net. South Korea had equalised. They would go on to win on penalties. Seol had delivered when his country needed him most.
“Seol’s tremendous workrate was the defining performance of the match,” the media declared. He was named in the team of the matchday.
But the defining moment of his international career would come two years later—for different reasons. At the 2026 World Cup, Seol started all three group matches for South Korea. The campaign ended in disappointment as the team were eliminated in the group stage. A Japanese media outlet named him in the tournament’s “Worst Asian XI,” criticising his performances and noting that he “became a symbol of the chaos the South Korean national team fell into during this tournament.”
Seol had experienced football’s highest highs and lowest lows. His response was characteristically resilient: he announced plans to take legal action against malicious commenters who had targeted him after the defeat to South Africa.
The boy from Ulsan had always faced adversity head-on.
Origins
Seol Young-woo was born on 5 December 1998 in Ulsan, South Korea. He joined the youth academy of hometown club Ulsan Hyundai (renamed Ulsan HD in 2024) in 2011, spending five years in the system.
He attended the University of Ulsan from 2017 to 2019, combining his studies with football. His versatility was already evident—he had played as a winger throughout his youth and university days, a background that would later inform his attacking instincts as a full-back.
The Professional Forge
Ulsan HD (2020-2024)
Seol officially joined Ulsan Hyundai’s senior team in January 2020. He made his K League 1 debut on 6 June 2020, starting in a 4-0 victory over Pohang Steelers. His first season was a learning curve—14 league appearances, no goals, but valuable experience in continental competition. He was part of the Ulsan squad that won the 2020 AFC Champions League, coming on as a late substitute in the final against Persepolis.
His breakthrough came in 2021. On 16 May, he scored his first professional goal, a strike against Suwon Samsung Bluewings. He finished the season with 2 goals in 31 appearances, quickly establishing himself as a regular starter.
The 2022 season brought his first K League 1 title. Ulsan finished top of the table, and Seol played 34 league matches—the most of his career to that point. He had become a vital part of the team’s spine.
In 2023, Ulsan retained their K League 1 crown, and Seol scored a career-best 3 league goals. His performances were recognised with a nomination for the AFC Player of the Year award in October 2024, a remarkable honour for a full-back.
His Ulsan record speaks for itself: 120 league appearances, 5 goals, and four consecutive seasons as a key starter for the most dominant team in South Korean football.
Red Star Belgrade (2024-Present)
On 29 June 2024, Seol made the move to Europe, signing a three-year contract with Serbian SuperLiga giants Red Star Belgrade for an undisclosed fee. The transition was seamless. He provided three assists in eight league phase matches during his first UEFA Champions League campaign, immediately establishing himself as a key contributor.
His first season in Serbia was a triumph. He scored 6 goals in 30 league appearances—an impressive return for a full-back—and added 5 assists. Red Star won the SuperLiga and the Serbian Cup. Seol had won silverware in his first European season.
The 2025-26 season saw him continue his fine form. He made 31 SuperLiga appearances, scoring 2 goals and providing 5 assists, while helping Red Star secure another domestic double. He also featured in the UEFA Europa League, making 10 appearances in the competition.
At Red Star, Seol has become a fan favourite, known for his relentless running, defensive reliability, and capacity to contribute in attack. He has won two SuperLiga titles, two Serbian Cups, and established himself as one of the most consistent full-backs in the region.
The Anatomy of His Game
Seol is a modern, versatile full-back. Having played as a winger during his youth, he possesses attacking instincts that set him apart from traditional defenders.
In Possession
Seol is a dynamic presence going forward. His crossing ability is a key weapon—he assisted Cho Gue-sung’s crucial equaliser against Australia at the 2023 Asian Cup with a pinpoint delivery from the right flank. He has recorded 5 assists in each of his two full seasons at Red Star Belgrade.
His 2025-26 SuperLiga stats highlight his attacking contributions: 2 goals, 5 assists, and a pass completion rate of 87.9 percent. He averages 155 touches per match, underlining his involvement in build-up play.
Out of Possession
Defensively, Seol is tenacious and positionally disciplined. He contributes with tackles, interceptions, and recoveries. His workrate is exceptional—he famously ran 15.54 kilometres in a single Asian Cup quarter-final match, demonstrating his capacity to cover ground.
Versatility
Seol’s greatest asset is his adaptability. Though naturally right-footed, he is comfortable on both flanks and has been deployed as a right-back, left-back, right wing-back, and even left wing-back. He has also featured as an attacking midfielder on occasion. His manager at Red Star has valued this flexibility, and South Korea head coach Hong Myung-bo has consistently selected him as a starter precisely because of his ability to play on both sides.
“I think being able to play on both sides can benefit the national team as well,” Seol has said. “Wherever the coach wants me to play, I’ll do my best.”
The Numbers Game
TABLE A: 2025-26 Season Snapshot
| Competition | Apps | Starts | Minutes | Goals | Assists | Rating |
|---|---|---|---|---|---|---|
| SuperLiga | 31 | 30 | 2,674 | 2 | 5 | 7.58 |
| UEFA Europa League | 10 | 10 | 930 | 0 | 1 | 6.85 |
| World Cup 2026 | 3 | 3 | 251 | 0 | 0 | 6.27 |
| Total | 44 | 43 | 3,855 | 2 | 6 | — |
TABLE B: Career (Top Leagues)
| Club | Period | League Apps | Goals | Assists |
|---|---|---|---|---|
| Ulsan HD | 2020-2024 | 120 | 5 | — |
| Red Star Belgrade | 2024-Present | 61 | 8 | 10 |
| Total | 2020-Present | 181+ | 13+ | 10+ |
TABLE C: International Record
| Competition | Apps | Goals | Major Honours |
|---|---|---|---|
| World Cup 2026 | 3 | 0 | Group Stage |
| Asian Cup 2023 | — | 0 | Semi-finals |
| Asian Games 2023 | — | 0 | Gold Medal |
| Senior Career | 35 | 0 | — |
| U23 Career | 15 | 0 | — |
TABLE D: Major Honours
| Honour | Year(s) | Club/Team |
|---|---|---|
| K League 1 | 2022, 2023 | Ulsan HD |
| AFC Champions League | 2020 | Ulsan HD |
| Asian Games Gold | 2023 | South Korea U23 |
| SuperLiga | 2024-25, 2025-26 | Red Star Belgrade |
| Serbian Cup | 2024-25, 2025-26 | Red Star Belgrade |
What These Figures Reveal
Seol’s career trajectory shows a player who has won silverware at every level. From K League titles to European trophies, from Asian Games gold to domestic doubles in Serbia, he has consistently performed for winning teams. His move to Europe has been a success, with 8 league goals in his first 61 appearances for Red Star—an exceptional return for a full-back.
The Present Tense
Seol Young-woo is 27 years old and firmly established as one of South Korea’s most important players. He is a key performer for Red Star Belgrade and a regular starter for the national team.
The Red Star Belgrade Story
Seol has become a vital part of Red Star’s setup, operating primarily as a right-back but capable of filling in on either flank. He has won back-to-back domestic doubles and featured prominently in European competition. His market value of €3 million reflects his status as a proven performer at a high level.
The International Career
Seol made his senior debut for South Korea on 20 June 2023 in a friendly against El Salvador. He was part of the squad for the 2023 Asian Cup, where he delivered a man-of-the-match performance against Australia in the quarter-finals, assisting Cho Gue-sung’s equaliser and running 15.54 kilometres.
He was also a key member of the South Korea U23 team that won the 2023 Asian Games gold medal, securing a sports exemption from mandatory military service under South Korean regulations.
At the 2026 World Cup, Seol started all three group matches. His performances drew criticism, with a Japanese media outlet naming him in the tournament’s “Worst Asian XI.” The outlet claimed that “expectations turned into disappointment, and then into hatred” regarding Seol’s performances.
The World Cup Campaign
Seol’s World Cup campaign was a microcosm of his career’s highs and lows. He was expected to be a key leader for South Korea, but the team’s early elimination—combined with his performances being singled out for criticism—made the tournament a difficult experience.
Following the final group match against South Africa, Seol’s agency announced they would take legal action against malicious commenters. Seol had become a target for online abuse, a troubling development that overshadowed his contributions to the national team.
Beyond the Touchline
Off the pitch, Seol is known for his professionalism and resilience. His journey from the Ulsan youth academy to European football is a testament to his dedication and work ethic.
His Asian Games gold medal was a significant moment. The victory secured him a sports exemption from military service, allowing him to focus on his career without interruption.
Seol has also demonstrated a willingness to stand up for himself. After receiving a barrage of malicious comments following the 2026 World Cup, he announced his intention to take legal action. His agency stated they were “continuously monitoring posts and comments related to Seol” and planned to “respond firmly to illegal acts, including malicious slander, without any leniency or settlement.”
The decision drew criticism from some who felt the timing was inappropriate—coming while South Korea were still awaiting results on whether they would advance as a third-place team. But Seol’s willingness to confront online abuse head-on spoke to his character.
Transfer Speculation
Seol is under contract with Red Star Belgrade until 2027, with an option for a one-year extension. No major transfer speculation surrounds him at present. He appears settled in Serbia, where he has won two consecutive domestic doubles.
The Verdict from the Camp
Hong Myung-bo, South Korea National Team Head Coach:
Hong has consistently selected Seol as a starter since taking charge. Seol’s versatility—being able to play on both the left and right—has been a key factor in his selection.
Seol Young-woo:
“I think being able to play on both sides can benefit the national team as well, so wherever the coach wants me to play, I’ll do my best.”
Media Reports (2023 Asian Cup Quarter-final):
Seol was named in the team of the matchday after his performance against Australia, which included an assist and 15.54 kilometres of running.
Football Channel (Japanese Media, 2026 World Cup):
“Seol Young-woo, who represents the standard of a modern fullback, was expected by the South Korean public to be a key player to lead the national team to greater heights. However, the quality of his performance shown at the World Cup was low, and expectations turned into disappointment, and then into hatred.”
“He became a symbol of the chaos the South Korean national team fell into during this tournament.”
“While playing without hesitation is Seol’s strength, it is also true that in this tournament, he gave the impression of playing as if he were constantly hitting the brakes.”
Where Next?
Seol Young-woo is 27 years old and at the peak of his career. He has won silverware in two countries and established himself as a key player for both club and country.
The Red Star Belgrade Situation
Seol is under contract until 2027 and is a key part of Red Star’s setup. He has won two domestic doubles and will be aiming to continue his success in Serbian football while competing in European tournaments.
The International Picture
Despite the disappointment of the 2026 World Cup, Seol remains an important player for South Korea. His versatility and experience make him a valuable asset, and he will be aiming to rebuild his reputation following the tournament.
Legacy
From the Ulsan youth academy to European football, from Asian Games gold to World Cup appearances, Seol Young-woo’s journey is one of resilience. The boy from Ulsan who worked his way through the ranks has won titles in two countries and represented his nation on the world stage.
His career is not defined by the criticism he received at the 2026 World Cup. It is defined by his remarkable workrate, his versatility, and his willingness to run 15.54 kilometres for his country. The boy who started as a winger and became a full-back has proven that he belongs at the highest level—wherever he is asked to play.
