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Most Improved U21 defenders in J3 League 2026

The most improved U21 defenders in J3 League in 2026, ranked on Field Insider.

Most improved goalkeepers in J3 LeagueMost improved midfielders in J3 LeagueMost improved attackers in J3 LeagueBest defenders in J3 LeagueMost in-form defenders in J3 LeagueTop-scoring defenders in J3 League

At a glance

S. Nagano of Gainare Tottori is the standout for raw talent across U21 defenders in J3 League, with a Field Insider Rating of 27.4.

By our market-value index, F. Kitajima of FC Gifu is the most valuable name in this group at 2.6.

Best talent
S. Nagano27.4RTG
Gainare Tottori
In form
S. Nagano10.4SsN
Gainare Tottori
Most valuable
F. Kitajima2.6val
FC Gifu
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