You know Danny Manning can do it all, and that he's been doing it all more regularly of late. You know that seniors Calvin Thompson and Ron Kellogg are going to get their points. You know that Cedric Hunter will do the job running the offense.

But you only know about 7-1 center Greg Dreiling that you really don't know. In any particular game, he can be a force. Or a dud.

When Kansas met Duke on Dec. 1, Dreiling watched (24 minutes) more than he played (16) because of foul woes.

"He's going to have to play more than 16 minutes this time," said coach Larry Brown Friday in the final press conference before today's Duke-KU confrontation in the NCAA semifinals about 5 p.m. in Reunion Arena.

"I think it'll be easier for him this time," Brown added. "Bilas plays a little closer to the goal and is more physical. It's a better matchup for him."

Jay Bilas, the Blue Devils' 6-8 senior center, was injured and didn't have a part in their 92-86 victory over te Jayhawks in the Big Apple IT finals. Freshman Danny Ferry was Duke's center then and often went outside, taking Dreiling into uncomfortable territory.

Bilas missed the first six games of the season, came off the bench in the next 15 and now has started the last 17.

His statistics are not that impressive: scoring 6.9, rebounding 4.9.

"Jay's the guy who does a lot of the dirty work and doesn't get much of the credit," said coach Mike Krzyzewski. "He's like an offensive lineman in football. But he still adds a lot of enthusiasm to our team and he's a very stable and capable player."

Dreiling indicated he wouldn't play tentatively to avoid fouling.

"I've got to establish physical type of play early so the referees will get used to seeing it," he said.. "When you're not assertive at the start and then get physical, the referees notice it.

"But as coach said earlier, I've got to play more than 16 minutes. I think 35 will be a good number."

The game matches the Nos. 1 and 2 teams in the wire service polls. ACC champion Duke with a 36-2 record and Big Eight champion Kansas with a 35-3 record.

"I just think they are a great basketball team," Brown said of the Blue Devils. "They have senior leadership. They have quality kids and a fine coach. They have everything. But I think we can beat 'em."

Krzyzewski was equally respectful of the Jayhawks. "They have an oustanding starting five, five very complimentary players," he said. "they are the most explosive team in the tourney. Kellogg, Thompson or Manning is capable of having a 30-point night. They are the hardest team for us to defend in the tournament."

Duke also is difficult to stop. All America guard Johnny Dawkins is scoring 20 points a game, 6-8 Mark Alarie 17.4 and 6-5 David Henderson 14.2. Dawkins, winner of the Naismith Award as the player of the year, has been particularly impressive in the NCAA tourney -- averaging 26.3 points with 60.8 percent shooting in the four games that got Duke here.

Dawkins and Tommy Amaker will be starting their 104th game together in the backcourt. Duke has gone 83-20 since they put on uniforms.

"What we are is a very good team with a very special group of players," said Kryzewski. "They are good people with talent and confidence. They've been very coachable and willing to put their personal goals aside in setting team goals."

Duke, once it got Bilas back, has avoided injury. Kansas still has Kellogg's strained arch. which has limited his practice during the tourney.

"The rest has been helpful," said Brown when asked about Kellogg's strained arch. "I'm confident he'll play. He deserves to play."