Kansas guard Brannen Greene is unlikely to play Saturday against Villanova because of a back injury, Bill Self confirmed. Greene didn’t play in the Jayhawks’ Sweet 16 triumph over Maryland.

“I’ve suspected that he wouldn’t be very effective for a while,” Self said Friday.

Self recalled a play in the second-round victory over Connecticut when a rebound came to the player Greene was assigned to guard and Greene just grabbed him.

“He said, ‘Coach, I had to, I can’t move,’” Self said. “We’ll check him out again but I don’t think that he’ll be available to us.”

Greene, a reserve, averages 5.4 points and shoots 49.2 percent on three-pointers.