Martin Odegaard has suffered a medial collateral ligament injury, which will rule him out of several upcoming games for Arsenal.
Odegaard's injury occurred during a clash with West Ham winger Crysencio Summerville on October 4, forcing him off the field after attempting to play on twice.
He has previous injuries, including a shoulder injury against Nottingham Forest and an ankle sprain that caused him to miss two months of last season.
Arsenal and Norway will be without Odegaard for an extended period due to this new injury.
Author's summary: Odegaard faces another extended injury absence.