Arsene Wenger was handed a timely boost as Hector Bellerin returned to training ahead of Arsenal's game against Hull.
Bellerin had not been able to take part earlier this week after being knocked out by a stray elbow from Marcos Alonso in Arsenal's defeat by Chelsea last week.
But the sight of him back with his team-mates will calm Arsenal's defensive nerves as they look to bounce back from consecutive Premier League defeats.
Bellerin's availability for Hull City's visit on Saturday remains a doubt, with Arsene Wenger revealing on Thursday that he will still have to go through a series of tests before the game.