The Hoops travel to the Highlands looking to stretch their unbeaten league run to 21 games, against third-placed Caley Thistle.
Adam Matthews returned from a fever to start against St Johnstone on Thusrday but was replaced early in the second-half by winger James Forrest who continued his recovery from a recent thigh strain.
Despite the absence of Charlie Mulgrew, Dirk Boerrigter, Mikael Lustig, Beram Kayal and Steven Mouyokolo, the Celtic manager has been delighted with his team's consistency.
Lennon said: "We have tried to balance the squad because we have two really hard away games back-to-back.
"Particularly Adam and James. Adam is still recovering from the virus and he was a bit heavy-legged in the second-half but I think he'll be in contention for Sunday.
"James will be in contention for a start and I don't think we have any fresh injuries which is a good thing.
"The squad is a bit thin. We have six or seven out at the moment. But the players who have been the bulk of the side have been great, we're unbeaten and I can't ask any more."