Kashiwa Reysol on Wednesday announced injuries to defender Ryosuke Yamanaka and striker Junya Ito.
Yamanaka will require three weeks to recover from an injury to his right thigh, while Ito will miss a week after bruising a muscle in his left foot.
Both players were forced to withdraw from the Japan Under-23 national team’s charity match against Ghana on Wednesday night as a result of their injuries.
Both suffered their setbacks during Reysol’s recent 3-1 loss to Kawasaki Frontale.