However, Stephane Courbis concedes he's now exploring options for the France international. Koscielny is currently recovering from Achilles surgery.
He told France Football: "We had opened different tracks, both China and France.
"He did not see himself playing in another English club than Arsenal. Since the approach of Marseille last season, the idea of returning to L1 made its way to the 32 year-old.
"It was a real possibility."
AS Monaco and Marseille both tried for Koscielny, though were eventually put off by his injury.