The roster is nearly the same, and their two stars — Jayson Tatum and Jaylen Brown — come in with plenty of personal motivation after a strange summer with USA Basketball.
While the Celtics are the favorites to emerge again from the Eastern Conference, the Western Conference is more complex because there are no elite teams, just a group of high-quality clubs.
In three years, South Sudan went from making its debut at the African FIBA tournament to the Olympic Games, while led by a longtime NBA assistant seeking his chance to lead his own team.