Over-age regulation will be used for CF, CMF, and CB.
As well as Japan national team, center forward is required to possess his ball for offensive midfielders. But, few candidates exist in under-23 pool. Also CMF and CB.
Takefusa Kubo, Miyashiro
Yuki Abe, Miyoshi, Keita Endo
Shibasaki, Nakayama, Ichimaru, Nakai
Sugioka, Nagatomo, Yamanaka