Duke basketball had a court-storming loss at Clemson. Here's what went wrong for Cooper Flagg and the Blue Devils in their first loss since November.

Duke basketball graduate forward Mason Gillis did not travel to Syracuse for Wednesday night's 83-54 win over the Orange. He was out with illness. And the 6-foot-6 reserve transfer out of Purdue remains out of commission for Saturday's road bout against the Clemson Tigers (18-5, 10-2 ACC).

After playing most of January without forward Maliq Brown, the Duke Blue Devils have kept winning, but will be without a key reserve at Clemson on Saturday.