Arsenal received a boost on the injury front Saturday thanks to Laurent Koscielny's early return to the first team.
The French defender was included in Arsenal's starting squad for its encounter with Watford after overcoming a hamstring injury a week ahead of schedule.
Koscielny was questionable to return in the days leading up to the match until he was able to pass a late fitness test.
The injury occurred during Arsenal's Champions League loss to Olympiacos when he was forced to leave just over 10 minutes after halftime.