Gabriel Jesus was ruled out of Arsenal’s pre-season friendly against Monaco on Wednesday due to a knee injury.
Arsenal confirmed the Brazilian will be assessed by the club, with Eddie Nketiah leading the line in his absence for the Emirates Cup clash.
The Gunners now face an anxious wait to discover the extent of the injury ahead of the new season.
Mikel Arteta’s side face Manchester City in the Community Shield at Wembley on Sunday.
The Gunners then begin their Premier League campaign at home to Nottingham Forest on August 12.