Duke coach Mike Krzyzewski said star freshman Zion Williamson had his "first really good workout" Thursday as he continues his recovery from a sprained right knee, although he remains doubtful to play in Saturday's regular-season finale against No. 3 North Carolina.
Krzyzewski said Friday that Williamson would have another workout without contact later in the day barring any setbacks after his activity Thursday. And while it sounds like Williamson is on his way to missing a fifth straight game, the Hall of Fame coach expressed optimism that he could be ready for next week's ACC tournament in Charlotte, North Carolina.
"The way it's going, he's not going to be doubtful for the tournament," Krzyzewski said. Thursday's workout "was pretty exciting, really, to see him move and have confidence in his movements. Now we've got to get him into condition and have him do some work" against contact.
Williamson was hurt in the opening minute of last month's loss to the Tar Heels, complete with the far-reaching bizarre image of his left foot tearing through his shoe as he fell to the court. He has missed four games since.
Williamson is averaging 21.6 points and 8.8 rebounds along with being a walking highlight reel of jaw-dropping athleticism and high-flying dunks. He's made himself a candidate to be national player of the year and the No. 1 overall NBA draft pick, joining freshman teammate and ACC scoring leader RJ Barrett (23.3 points) to give the Blue Devils an unstoppable one-two punch.
Duke (26-4, 14-3 ACC) is 3-2 in the nearly five full games without Williamson.
"He's so team-oriented,'' Krzyzewski said. "I think it bothers him that he hasn't been with us. But we can't let him push the process too much to where his loyalty to his team -- and he hasn't -- goes against him coming back the way he should come back.''
UNC coach Roy Williams said Thursday the Tar Heels (25-5, 15-2) wouldn't focus on whether Williamson would be ready.
"We're still preparing like Zion's going to play,'' Williams said. "And at the same time, they're going to make that decision so we have no say over it -- so why worry about that part of it?''
Krzyzewski said the fourth-ranked Blue Devils will announce Williamson's status for the ACC matchup after Saturday morning's shootaround.
"We'll put it out,'' Krzyzewski said. "I've never liked playing that game or when someone plays that game with me. It's disrespectful. ... I don't think they are worried about if Zion plays or not. They are worried about their own performance.''
The Associated Press contributed to this report.