The Japan Football Association revealed that the playmaker felt a twinge in his lower back during training for the Group B qualifier in Saitama. Italian coach Alberto Zaccheroni decided not to risk Kagawa, whose injury will also be a concern to United manager Sir Alex Ferguson ahead of the home game against Wigan Athletic on Saturday.
The 23-year-old has made three appearances, scoring once, since his move from Borussia Dortmund in the summer.
Source: team_talk