Kostas Antetokounmpo and Daryl Macon, both of whom spent 2018-19 on two-way contracts with the Mavericks, will be joined by former Mav Antonius Cleveland on the 14-man roster. Mike Weinar, an assistant to Rick Carlisle, will serve as head coach of the team with Mike Shedd, God Shammgod and Jenny Boucek assisting.
Roby was the 45th pick in the draft last week, originally taken by Detroit. The Mavericks worked a trade with the Pistons to give up the 36th pick in exchange for Roby and two future second round picks.
Roby, who came out of Nebraska as a junior, averaged 11.