Rangers boss Walter Smith is hopeful Fifa will allow Daniel Cousin to join Fulham.
Fulham have agreed a £3million deal for the Gabon international and the player has held talks and underwent a medical at Craven Cottage.
However the move is being held up by Fifa red tape as rules stipulate players are not able to represent three clubs in one season.
Cousin played 20 minutes for Lens before signing for Rangers in August, but Smith is hoping Fifa will allow the 30-year-old's switch to West London to go through.
"The Cousin deal is in the balance but we are hopeful that Fifa will look at the situation sympathetically," Smith told Rangers TV.
"The player has expressed a desire to play in the Premiership and it is better for all concerned that the deal goes through."