Laurent Koscielny should be fit to face Paris St-Germain in Arsenal's opening Champions League group game on Tuesday.
The defender, who suffered a facial injury in Saturday's 2-1 win over Southampton, trained on Monday.
New signing Shkodran Mustafi should partner Koscielny, with Arsenal already without their other centre-backs Per Mertesacker and Gabriel because of injury.
Striker Olivier Giroud is pushing for his first start of the season in Paris.
The France international, 29, has made two substitute appearances for the Gunners so far this campaign.
It was a foul on the forward that led to Arsenal's late winner in Saturday's home win after Koscielny's overhead kick had cancelled out Petr Cech's own goal.