The 6-foot-3 freshman will sign with an agent and forgo his remaining eligibly, multiple sources told CBSSports.com.
Rivers, the son of Boston Celtics coach Doc Rivers, averaged 15.5 points, 3.4 rebounds and 2.1 assists this past season in Durham.
Rivers, according to multiple NBA executives, is expected to be a lottery pick in June's NBA Draft.
The Blue Devils could also lose junior forward Mason Plumlee early. Plumlee has yet to make a decision, but is expected to do so next week.
Duke was upset in the round of 64 in the NCAA tournament last week to Lehigh. Rivers scored 19 points in the loss.