Ciani played his final match for the club he joined in 2009 on Sunday, helping Les Girondins to a 0-0 draw with Paris Saint-Germain at the Parc des Princes.
After that match, Ciani said: "It is not official yet because I have to pass a medical examination. The trip is scheduled for tomorrow (Monday) and when I sign I will be relieved.
"I'm happy and sad at the same time. Happy because I am gaining experience at a big club and sad to leave."
Ciani made 90 Ligue 1 appearances in his three years at the Stade Chaban Delmas following his arrival from Lorient in 2009, scoring six goals in that time.
The 28-year-old earned his first and so far only cap for France in 2009, when he started a friendly against Spain which Les Bleus lost 2-0.