The Gunners boss concedes the Frenchman could leave Emirates Stadium, with club officials now working on a "solution" which suits both parties
Arsenal head coach Unai Emery has expressed a desire to "continue working with the players that want to be here", after revealing that Laurent Koscielny is close to a summer exit.
The 33-year-old caused a stir earlier this month when he refused to travel with the Gunners squad for a pre-season tour of the United States, amid rumours of a potential return to France.
Arsenal have already opened disciplinary proceedings against the veteran centre-back, who has reportedly expressed a desire to leave the club on a free transfer.