Field Insider

ratings updated 31 Aug 2026

Profile

PositionCentral midfielder
Nationality
Age18
Shirt number#42
ClubFC Seoul
Central midfielderalso played FWD
29
Appearances
0
Goals
1
Assists
866
Minutes

Domestic-league season · FC Seoul.

Performance data · by competition

CompetitionAppsGAMinMatch
K League 118015076.51

Scout report

★ Standout performer

All K League 1 standouts →

First senior season on record — and already on the pitch for 28% of FC Seoul's available minutes, one of the top game-time debuts in the K League 1 this season.

Elite prospectCentral midfielder

J. Son is a 18-year-old central midfielder at FC Seoul, rated 48.7 overall by Field Insider's model, ranking 1st of 153 on scout potential in the K League 1 and 42nd of 163 U-19 players tracked. A teenage prospect, he has been a fringe squad member this season (30.1% of available minutes). His defensive output reads 2.39 tackles, blocks and interceptions per 90. Below: strengths, watch-points, market-value outlook and the latest transfer news on Son.

Judged on this season alone, Son graded 10 — a workmanlike campaign that ranks 20th of 43 of the 43 central midfielders in the K League 1, on 0 goals, 1 assist and 2.39 defensive actions per 90.

We hold a single season for Son, so there's no year-on-year comparison to draw yet — the read above is this campaign only.

On long-term talent our Rating reads 49, top 3% of the 43 central midfielders in the K League 1. At 18 Son is still climbing toward his ceiling, and a market index of 8.9 reflects that trajectory.

48.7
Ratingi
1st of 43 central midfielders
10.2
Seasoni
below regular-starter level
30.1%
Minutes
limited game time
2.39
Def. actions / 90
moderate defensive volume

Output in context · FC Seoul finished 1st of 12 · a title-challenging side

29
Apps
2.39
Def. / 90
18
Tackles
4
Interceptions
4
Clean sheets

2.39 tackles, blocks & interceptions per 90 — moderate defensive volume, with 4 clean sheets across 29 appearances. Behind a title-challenging side (1st of 12) the side controls more games, so the defensive load is lighter — the value sits as much in composure and ball progression as in raw volume. Going forward he chipped in 0 goals and 1 assist — a useful bonus from the back.

Watch points

  • Game time. Only 30.1% of available minutes — needs a settled run to prove the level.

Outlook

With a Rating of 48.7, Son carries the 1st-highest potential of the central midfielders in the K League 1 of 43 — though on just 29 appearances this season, so the standing rests on a small sample. Defensively he reads as moderate defensive volume (2.39 tackles, blocks & interceptions per 90). At 18 the trajectory points up — potential sits near its ceiling (100/100) and market value should climb as minutes and output follow. With this floor already at 18, the ceiling gets tested by a step up in level — one to track.

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

Season statistics

Bars = where he ranks among central midfielders in the K League 1 with 600+ minutes this season.

Shooting

Goals0
Shots on target1
Shots5

Passing

Assists1
Chances created6
Passes170
Pass accuracy81%

Possession

Successful dribbles14
Dribble success66.7%
Duels won45
Duels won %47.4%
Fouls won8

Defending

Tackles18
Interceptions4
Blocks1
Fouls committed15

Yellow/red cards

Yellow cards3
Red cards1

Transfer news

No transfer news found for this player.