Steven Davis has suffered no serious damage to his hamstring, Rangers manager Walter Smith has revealed.
The midfielder came off with 15 minutes of Sunday's 3-2 SPL win at Aberdeen remaining after feeling tightness in his right leg.
Immediately after the clash, Smith was pessimistic over Davis' chances of facing Bursaspor in UEFA Champions League action at Ibrox on Wednesday.
But 24 hours later the Gers boss is slightly more positive over his fitness.
"Steven is experienced enough to know when something is wrong and he came off before any serious damage but it's still a major concern to us," Smith told the club's official website.
"We know that a bad hamstring injury can keep a player out for four to six weeks so we will just have to see how it is over the next couple of days.
"In that period Steven will hopefully feel he is fully recovered.
"He has started to play very well for us by his own standards, which are very high.
"His level of consistency since he has come to us has been terrific.
"I felt he has having his best game at Aberdeen when we had to take him off."
Steven Whittaker is available after recovering from a head knock, but James Beattie and John Fleck, who injured his hamstring in pre-season, will not be fit for the midweek clash.
"John Fleck I would hope would be ready to rejoin us by the end of the week and James Beattie the same," added the Scottish tactician.
"He took a bit of a knock on his hip. We had hoped he would be ready for last weekend but it wasn't to be."