Updated

Kansas coach Bill Self says that star freshman Joel Embiid could miss time with back and knee injuries, and just how much could determine whether the Jayhawks still have a shot at landing a No. 1 seed in the NCAA tournament.

The 7-footer has been dealing with a sprained knee and back trouble. He only played 18 minutes in an 85-82 overtime loss at rival Kansas State on Monday night.

Self said afterward Embiid is "going to need some time off," but he wouldn't say whether the big man would miss Saturday's game against TCU.

The Jayhawks are 18-6 and 9-2 in the Big 12, good enough for a narrow lead over Texas (18-5, 7-3) in the race for the conference title.