Walter Smith has revealed Steven Davis is a doubt for the midweek Bursaspor clash after picking up a hamstring injury against Aberdeen.
The Northern Ireland midfielder was replaced by Maurice Edu in the 74th minute of Sunday's 3-2 comeback win at Pittodrie which sent Smith's side back to the top of the SPL.
But the Gers boss admitted afterwards that his team could face the Turkish side in the UEFA Champions League on Wednesday without the 25-year-old.
He said: "Steven Davis has a slight hamstring injury and going by past experience you would have to put him in the doubtful category.
"It would be a blow if we were to lose Steven as I feel he is just coming into our season now and today was the best he has played this season.
"Steven Naismith and Steven Whittaker both took knocks to the head but they should be okay."
Smith was delighted with the character of his side after Kenny Miller's double and Nikica Jelavic's winner saw Gers claim the points after being two goals down.
The victory was Smith's first at Pittodrie since he returned to Ibrox three years ago but he insisted he did not take any extra satisfaction from this.
He added: "You just want to win matches. Aberdeen seem to take great pleasure in saying that the only team they want to beat is Rangers.
"I'm not like that, I prefer my team to try to beat everybody we play.
"When you come to Pittodrie an innocuous foul for either team is treated like a crime against humanity. It is a very difficult situation for the referee to handle.
"What most pleased me was the character that the team showed to come back from going two goals behind."