Ghana midfielder Thomas Partey has started training ahead of the North London derby against Tottenham on Sunday.
The summer signing has been out with an injury he sustained in Arsenal's defeat to Aston Villa last month.
His absence has seen Arsenal struggle, having failed to win their last two home games in the Premier League.
But manager Mikel Arteta has given updates on the 27-year-old's injury situation, and it looks likely he might play a role in the match against league leaders Tottenham.
"He’s been training separately in the last week or so and we have to scan him again to see how he’s feeling. He’s a player that is so willing, that is pushing us every day and he wants to do it," Arteta said ahead of their Europa League clash against Rapid Vienna.
"At the same time, we have to protect him and make sure that when he gets back in the team, he is ready to do that and to whatever extent of minutes we can use him, so it’s going to be crucial with the moment he starts to train with the team to see how he is feeling and how he is evolving day-to-day," he added.
"We don’t know again, he is really pushing every day and he’s trying to get around the doctor and the physios but he hasn’t trained with the team yet so let’s see this week if he can get a session or two and then assess him, we need to scan him again so we can see the extent of the injury and how it’s healed.
"I know if it’s up to Thomas then he wants to play tomorrow. We have to see medically that he is safe to participate at all."