Embiid is scheduled to meet with a back specialist on Monday morning.
Initially, Kansas officials only described the injury as a lower-back strain. But KU coach Bill Self acknowledged to the Kansas City Star late Sunday that Embiid's issues are more "significant" than a lower-back strain. The 7-foot freshmen is supposed to return to campus late Monday or early Tuesday, a source told CBSSports.com on Sunday.
The Jayhawks will play either Oklahoma State or Texas Tech on Thursday in the quarterfinals of the Big 12 tournament at the Sprint Center in Kansas City. KU is 2-1 this season without Embiid, who is averaging 11.2 points and 8.1 rebounds per game.