Seo Young-Jae

Young-Jae's current-season form is level with last season (Season 8→8), while his Rating eased 34→21. His peak season for form remains 2023/24 (Season 8).

Domestic career

Season	Club	Apps	G	Match	RTG	Season
2026/27	Daejeon Citizen · 9th	2	0	6.5	21	8
2023/24	Daejeon Citizen · 2nd	23	0	6.57	34	8
2022/23	Daejeon Citizen	14	0	—	—	—
2021/22	Daejeon Citizen	34	1	—	—	—
2020/21	Daejeon Citizen	15	0	—	—	—

Domestic-league totals per season. RTG = Field Insider Rating (potential / ceiling); Season = age-blind form that year. 2 earlier seasons and 3 youth-team spells in the full career.

Scout report

Experienced headFull-back

Seo Young-Jae is a 31-year-old full-back at Daejeon Citizen, rated 21.5 overall by Field Insider's model. A seasoned veteran, he has been a rotation option this season (48.9% of available minutes). His defensive output reads 1.4 tackles, blocks and interceptions per 90. Below: strengths, watch-points, market-value outlook and the latest transfer news on Young-Jae.

On the season, Young-Jae graded 8 for current form (age-blind), on 3 clean sheets and 1.4 defensive actions per 90.

Year-on-year, that's broadly in line with last season (Season 8 → 8).

On long-term talent our Rating reads 22. At 31 Young-Jae is into the veteran stage, where the age curve weighs on the projection, and a market index of 2.4 reflects that trajectory.

21.5

Ratingi

below regular-starter level

Seasoni

below regular-starter level

48.9%

Minutes

rotation minutes

1.4

Def. actions / 90

light defensive volume

Output in context · Daejeon Citizen finished 9th of 13 · a lower-table side

Apps

1.4

Def. / 90

Tackles

Interceptions

Clean sheets

1.4 tackles, blocks & interceptions per 90 — light defensive volume, with 3 clean sheets across 23 appearances. Doing that for a lower-table side (9th of 13) is harder than the bare numbers suggest: a back line under more pressure has to defend more often and protects fewer leads, so the volume — and any clean sheets — carry real weight.

Watch points

Game time. Only 48.9% of available minutes — needs a settled run to prove the level.
Defensive numbers. Modest 1.4 defensive actions per 90 for the position.
Age curve. At 31, both level and resale value are on the downslope.
Level. Rates below a nailed-on top-tier starter on our model.

Outlook

Rated 21.5 overall — below regular-starter level. Defensively he reads as light defensive volume (1.4 tackles, blocks & interceptions per 90). Veteran phase — a short-term, lower-fee proposition as both level and value decline (0.9× and falling).

Generated from Field Insider's rating model · AI-written analysis to follow.

Per 90 & availability

Minutes played %48.9%

Available fixtures38 of 38

Goals / 900

Assists / 900

Goal contribution / 900

Defensive actions / 901.4

Player flow

Goal involvements0

Cards / 900.108

Season-by-season progression

Rating (potential)Season (form)

Value & potential by age

Market valueRating

Solid = now · dashed = projected

The gold line is market value — an index (not €) blending rating, age and league. It climbs through the early 20s, peaks around ages 23–27 (~5), then tapers with age. At 31, Young-Jae sits on 2.4, past its peak and easing. The blue line is Young-Jae's projected Rating — 21.5 today — recomputed at each age, so it follows the same rise-and-fall as a career matures and declines. Solid = up to today; dashed = projected.

Season statistics

Bars = where he ranks among full-backs in the K League 1 with 600+ minutes this season.

Shooting

Goals0

Passing

Assists0

Defending

Tackles13

Interceptions11

Blocks2

Yellow/red cards

Yellow cards2

Red cards0

Transfer history

Daejeon Citizen(back from loan)Nov 2025 – now

DDangjin Citizenuntil Nov 2025

Daejeon CitizenJul 2020 – Nov 2025Free

Holstein KielJul 2019 – Jul 2020

MSV DuisburgJul 2018 – Jul 2019Free

Hamburger SVuntil Jul 2018

About Seo Young-Jae

Young-Jae Seo is a 31-year-old full-back who plays for Daejeon Citizen, born on May 23, 1995, standing 182 cm tall. He is from Korea Republic. Daejeon Citizen currently sit 9th of 12 in the K League 1.

This season

In the current season, Seo Young-Jae has made 2 appearances with 0 goals and 0 assists across 45 minutes, averaging a 6.5 match rating over his last 1 rated games.

Recent matches

March 14, 2026: 1-1 draw at home vs Gimcheon Sangmu FC (45 minutes, 6.5 rating)

Seo Young-Jae's next match is on August 30, 2026, when Daejeon Citizen face Jeju United FC away in the K League 1.

Field Insider's view

Field Insider currently rates Seo Young-Jae at 21.5 with a Season form score of 8. See the full scout report for strengths, watch-points and the market-value outlook.

Career

Across 10 recorded seasons, Seo Young-Jae has totalled 164 club appearances with 3 goals and 1 assist for 4 different clubs. His busiest campaign came in 2021/22, with 34 appearances for Daejeon Citizen.

Seo Young-Jae's career has also included time at DDangjin Citizen, Holstein Kiel, MSV Duisburg and Hamburger SV.

Transfer news

No transfer news found for this player.

Profile

Season stats

Performance data · by competition

Career

Scout report

Output in context · Daejeon Citizen finished 9th of 13 · a lower-table side

Watch points