Hakan Calhanoglu fired Inter Milan to a 1-0 win over Arsenal on Wednesday to continue their unbeaten start in the Champions League and inflict a first defeat on the Gunners in this year's revamped tournament.
Mikel Arteta's men have now picked up just one point in their past three games as their title push quickly runs out of steam.
The Spaniard said Odegaard would not be ready for this weekend but the situation will be reassessed ahead of next week's games against Shakhtar Donetsk, in the Champions League, and Liverpool.
Leandro Trossard has come in for the top-flight games missed by Martin Odegaard, as well as the Champions League win over Paris Saint-Germain this week.
Arsenal manager Mikel Arteta said he still "loves" Manchester City boss Pep Guardiola despite last weekend's bad-tempered top-of-the-table clash.
Arsenal have to show they are ready to topple Premier League champions Manchester City in Sunday's top-of-the-table clash between the title favourites, according to Gunners' boss Mikel Arteta.
Calafiori impressed for Bologna and the Italy national team last season.
Thomas Tuchel knows Bayern can redeem themselves by winning the club's seventh Champions League crown.
Mikel Arteta believes Arsenal are primed to avenge their wretched Champions League record against Bayern Munich as the Gunners set their sights on a remarkable double.
Mikel Arteta has urged his Arsenal stars to use football's dark arts to their advantage because he fears it is not in their "DNA" to be nasty.