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Most Improved U21 defenders This Season in J1 League

The most improved U21 defenders in J1 League, ranked on Field Insider.

Most improved goalkeepers in J1 LeagueMost improved midfielders in J1 LeagueMost improved attackers in J1 LeagueBest defenders in J1 LeagueMost in-form defenders in J1 LeagueTop-scoring defenders in J1 League

At a glance

K. Takai of Kawasaki Frontale is the standout for raw talent across U21 defenders in J1 League, with a Field Insider Rating of 52.7, and K. Doi has been the form player this season, grading 21.3.

The numbers a scout watches are the year-on-year jumps: K. Takai has improved his Season rating most, up +7.2 on last season, while K. Doi's scouting Rating has risen fastest, +0.4 over the same span. Those are the players whose trajectory is bending upward fastest.

By our market-value index, K. Takai of Kawasaki Frontale is the most valuable name in this group at 13.

Best talent
K. Takai52.7RTG
Kawasaki Frontale
In form
K. Doi21.3SsN
FC Tokyo
Rising potential
K. Doi+0.4RTG
FC Tokyo · 24/25→25/26
Most improved
K. Takai+7.2SsN
Kawasaki Frontale · 24/25→25/26
Top scorer
K. Takai2goals
Kawasaki Frontale
Most valuable
K. Takai13val
Kawasaki Frontale
2 players · ranked by most improvedCustomise →
PlayerTeam
1K. TakaiCentre-backKawasaki Frontale21+7.2
24/25→25/26
2151.8%530.8%
2K. DoiCentre-backFC Tokyo21+6.2
24/25→25/26
2141.1%510.8%