Rangers manager Walter Smith revealed skipper Barry Ferguson and defender Karl Svensson are doubts for the Uefa Cup clash with Hapoel Tel Aviv.
Smith saw his side make hard work of their win over Falkirk
"It will be touch and go for Barry and Karl Svensson," he said after duo limped out of the win over Falkirk.
"Both are groin injuries but I don't think they are bad ones. We'll have to wait and see.
"It wasn't the best performance since we came here but it was one we were pleased to get away with."
With Hearts and Aberdeen dropping points on Saturday, Rangers are now seven points clear in the race for second place.
"The most important thing was to get the win," added Smith.
"Falkirk kept the ball well and frustrated us for spells and we didn't make the most of our opportunities."
Kevin Thomson and Ugo Ehiogu are not likely to have recovered from hamstring injuries in time for Thursday's European clash.
But striker Dado Prso made his return from injury as a substitute against Falkirk and will be in contention for the Hapoel clash.
Svensson was replaced by Sasa Papac at the break, who is cup-tied for European matches this season.
"I thought it was better for Svensson that we take him off, having already lost Ehiogu," added Smith.
"He's ready to come back and should be okay for the Hibs game but Thursday might be too early for him.
"So, with the European game in mind, it was worth taking Svensson off."