The Cavs are sending Nick again along with the same traveling party that brought the team luck a year ago.
His dad recently joked that his son better bring home a winner.
"If he doesn't get the first pick, he will be grounded all summer," Gilbert joked. "This is a very important draft for us. We hope to add some key pieces this summer."
Irving also will attend the lottery along with the Gilberts, former Browns quarterback Bernie Kosar and current Browns players Josh Cribbs and Joe Haden.
General manager Rich Cho will be on stage for the Bobcats, whose odds are best (35.8 percent) of picking fourth. The lottery sets the top three picks, with the remainder of the 14 participants drafting in inverse order of their records.
The draft is June 28 in Newark, N.J.
AP Sports Writer Tom Withers in Cleveland contributed to this report.
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