Rangers coach Ian Durrant is confident a deal for Sone Aluko will be completed in time for the winger to be involved in Sunday's game against Kilmarnock.
Aluko left Aberdeen in the summer and he has impressed sufficiently on trial at Rangers to be offered a contract initially until the end of the season.
However, Aberdeen are entitled to compensation for the 22-year-old and the two clubs are continuing to hold talks regarding a fee.
Durrant believes the discussions are making progress and feels the SPL champions could be in a position to finalise Aluko's signing on Thursday.
"It's just an agreement between the two teams and hopefully it will happen today and Sone will be available for Sunday," said Durrant.
"There are just a couple of things to be ironed out between Rangers and Aberdeen and, for Sone's sake, hopefully it will be done today.
"It's down to finance now and as soon as we get it sorted he will be a great addition for Rangers."
Durrant believes Aluko could go some way to filling the void left by Steven Naismith, who is out for the season with cruciate ligament damage.
He added: "It's well known with Steven being out that we're short up front and Sone can play in a variety of positions.
"He can play on the left and he can play through the middle. He has also been in the SPL for a few years with Aberdeen so he brings a bit of experience to the team for such a young lad."