While the University of Kentucky still won't say exactly what's wrong with sophomore center Willie Cauley-Stein's injured left ankle, chances are it will prevent him from playing in the Final Four this weekend.

"I doubt he plays," coach John Calipari said Monday. "He will be on our bench cheering like crazy."

Cauley-Stein, a 7-footer whose 106 blocks this season are second-most in school history, injured the ankle early in the Wildcats' Sweet 16 win over Louisville. He was on crutches Sunday, when he watched UK's Elite Eight victory over Michigan with his jersey pulled over a hooded sweatshirt and a protective boot on his left leg.

He hopped out onto the court on one foot to celebrate with his teammates and laid himself on top of the dogpile after Aaron Harrison's 3-pointer with 2.6 seconds left propelled Kentucky into the national semifinals. Calipari said the team doctor to him he had to hold down Cauley-Stein the night got hurt against U of L and was back in the locker room watching the game.

"You cannot believe how much he was cheering for his team in there. He wasn't worried about himself. He was going bonkers," the doctor told Calipari. "It's kind of like Nerlens (Noel). When Nerlens got hurt, they see their life flash before them, their careers. And I said to Nerlens, 'Nerlens, you are fine. Now, our team is not, but you are fine.'

"And I just said to Willie, 'Willie, we're going to try to cover for you. It's gonna be really hard, but let me say this: You personally, you've proven yourself. People know what you are.' "