Now Unai Emery has admitted that Koscielny has told the club that he wants to leave despite still having another 12 months on his contract at the Emirates.
The two sides will also be represented by their lawyers as they look to sort out Koscielny's future. This plan is also in effect because the club might not sign many players in this transfer window hence them trying to use some of their academy players.
Emery's first campaign ended with a fifth place finish in the league and a defeat to Chelsea in the Europa League final and this season the club is aiming to improve on that, although to date the only player they have brought in is teenage winger Gabriel Martinelli. We have a clear idea to sign players to help us with quality and in the positions we need.
Arsenal are in a bit of disarray at the moment, after club captain Laurent Koscielny made a decision to snub the team's pre season tour to the United States (US) in order to force a move away.More news: Ukraine provides JIT with evidence to identify people behind MH17 crash
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"I don't want to speak about the names but Ceballos is a very good player", he said. "We have very good players and very good young players that can progress and make big performances with us".
Is it worth keeping an unhappy player on the books against his will, or should we just bow into his demands and let him go at any price? We need, really, that they will come with a big performance.
"Our target is to achieve three, four players to really improve our team and squad now", Emery said speaking to the press ahead of a pre-season match against Bayern Munich. And after, if we can not achieve that, then the second.