Celtic will be without key midfielders Beram Kayal and Joe Ledley for several weeks due to injury.
The due both played in the Champions League play-off match against Helsingborg on Tuesday but now face a period of time on the sidelines.
Celtic manager Neil Lennon revealed at his weekly news conference that Kayal will miss three to four weeks due to an ankle knock, while Ledley has a groin injury that will force him to sit out two weeks.
"The injuries aren't majorly concerning, particularly Joe's injury," Lennon said.
"Joe has been one of the best signings since I came to the club, and so consistent, he is a big loss to us. Beram is a little bit of a worry because it is his other ankle which is giving him bother.
"It is unfortunate. The midfield is probably the strongest department at the club.
"We have Victor Wanyama to come into the squad and we have options."
In addition to the midfield duo, Lennon said that there were "bumps and bruises" to other players that would force him to rotate his team.
Thomas Rogne, Scott Brown, Kris Commons and Georgios Samaras are all doubts for the trip to Inverness for Saturday's SPL game.
