Duke is planning to be without junior center Marques Bolden for at least the ACC tournament.

In an interview posted Monday on the school’s athletics department website, Duke coach Mike Krzyzewski ruled Bolden out for the tournament due to the sprained left knee he suffered during last Saturday’s 79-70 loss at North Carolina.

“There’s no way Marques will be ready for the ACC Tournament,” Krzyzewski said. “Whatever grade (the sprain) is, he’s not going to be well in one week.”

The 6-11 Bolden started 21 of Duke’s 31 regular-season games, averaging 5.8 points and 4.7 rebounds per game. He was injured less than three minutes into Saturday night’s game when he was attempting to block a shot.