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Most Improved U21 defenders in J2 League 2026

The most improved U21 defenders in J2 League in 2026, ranked on Field Insider.

Most improved goalkeepers in J2 LeagueMost improved midfielders in J2 LeagueMost improved attackers in J2 LeagueBest defenders in J2 LeagueMost in-form defenders in J2 LeagueTop-scoring defenders in J2 League

At a glance

R. Umeki of Imabari is the standout for raw talent across U21 defenders in J2 League, with a Field Insider Rating of 37.6, and K. Konomi has been the form player this season, grading 21.4.

By our market-value index, R. Umeki of Imabari is the most valuable name in this group at 6.2.

Best talent
R. Umeki37.6RTG
Imabari
In form
K. Konomi21.4SsN
Consadole Sapporo
Most valuable
R. Umeki6.2val
Imabari
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