"I have spoken to the player and he wants to stay in Paris," Bruce admitted. "It's a setback as we had sorted everything else out with his club.
"Didier is a highly rated player who is quick and can play on the left of midfield as well as left-back.
"He would have given us a good option down that side, especially as Martin Grainger won't be around for a month because of a hamstring injury and viral infection."