ANAHEIM, Calif. - Kevin Parrom hasn't slept much this week.

He can't afford to.

In an effort to keep his sprained left ankle constantly moving, the Arizona Wildcats sophomore forward has limited his sleep to five or six hours at a time.

Then it's back to range-of-motion activities, ice and more treatment.

Parrom, who said he stopped by trainer Justin Kokoskie's house one night for more therapy, earned coach Sean Miller's praise Wednesday for working "almost around the clock" to heal.

It's in an effort to give the Wildcats full use of one of their top weapons tonight against Duke in the Sweet 16.

"Feelin' good," Parrom said. "Feelin' real confident. A little sore, but it's going to be fine."

Parrom fell on J'Covan Brown's foot in the first half Sunday against Texas. He was limited in Wednesday's practice by the injury - which ordinarily might take weeks to heal - but said he will play tonight.

Asked to give a percentage about how his ankle felt, the Bronx native first said "95," then, smiling, "90."

It's probably neither, but that's OK.

"Some of it's mental, just talking through it," Kokoskie said, "Talking him into believing that he's going to get better and be better. It might look bad. Functionally the ankle's ready to go."

Although it looks swollen, Parrom has been assured it can do everything he needs tonight.

"Kevin is a tough kid," guard MoMo Jones said. "That's what he brings to our team. He plays. He doesn't worry about a lot.

"He doesn't think about what's going to happen five minutes from now. He thinks about what's happening at that moment, and at that time."

After Sunday's win, Miller told his players that a nasty streak is necessary this time of the year.

Parrom, who last year popularized a "No Easy Buckets" mantra after committing a hard foul in a game against Arizona State, personifies nasty.

"Kev is tough. Kev is quiet. Kev doesn't really say nothin'. His actions speak louder than his words do," Jones said.

"Kevin's gonna elbow you. Kevin might punch you in the face. You just never know what you're going to get out of Kevin when Kevin gets mad."

He doesn't back down.

"Coach just wants us to be confident, just be focused, to be nasty on the court," Parrom said. "Not necessarily to go up and smack a guy in the face, but be a nasty team. Just want it. Just be hungry."

A healthy, or healthy enough, Parrom would go a long way toward slowing the Blue Devils, who could play either four guards or a more traditional lineup.

At 6 feet 6 inches, Parrom theoretically could guard everyone from 6-2 guards Nolan Smith and Kyrie Irving to 6-8 forward Kyle Singler.

Off the court, Parrom is probably the Wildcats' silliest teammate; he coined Derrick Williams' "Superman" moniker, after all.

Which is why forward Solomon Hill joked about Parrom with him in earshot Thursday.

"Kev's not tough," Hill said, joking. "That's fake. He just looks tough. If he was tough, his ankle would be able to take J'Covan Brown's toe.

"If he was tough, he would have got up and ran full sprint back on defense."

Hill joked that "you can't be 165 pounds and tough," and Parrom limped over with a smile on his face.

"He plays hard, though," Hill said, turning serious. "He plays really hard."