WINSTON-SALEM, N.C. – Duke coach Mike Krzyzewski might have poured too much emotion into the fourth-ranked Blue Devils’ trip to Wake Forest.

Duke’s players didn’t seem to have enough emotion.

The Demon Deacons upset Duke 82-72 on Wednesday night after Coach K experienced enough dizziness and lightheadedness to force him to kneel during a late timeout. He skipped the postgame news conference.

Associate head coach Steve Wojciechowski — who filled in for him — said Krzyzewski has not been sick, is in good shape and expects to make a full recovery.

“There was a great emotional investment in the game,” Wojciechowski said, “and I think maybe the emotion got the better of him.”

Duke (23-7 overall, 12-5 Atlantic Coast Conference) was playing for the first time in more than a week.

Wake Forest (16-14, 6-11) took control with a 17-0 run late in the second half. Tyler Cavanaugh scored a career-high 20 points for the Demon Deacons.

Other Top 10 men

At No. 8 Kansas 82, Texas Tech 57

Tarik Black scored 19 points on 9-for-9 shooting in his final home game, and the Jayhawks (23-7, 14-3 Big 12) overwhelmed the Raiders (13-17, 5-12).

At No. 9 Wisconsin 76, Purdue 70

Frank Kaminsky scored 22 points, Traevon Jackson added 14 and the Badgers (25-5, 12-5 Big Ten) defeated the Boilermakers (15-15, 5-12) to extend their winning streak to eight.

No. 10 San Diego St. 73, at UNLV 64

Xavier Thames, who started his career at Washington State, scored 19 points to lead the Aztecs (26-3, 15-2 Mountain West) past the Rebels (19-11, 10-7). San Diego State closed with a 13-2 run.