This is from UMHoops via Sam Webb (original article is paywalled). Antetokounmpo is the younger brother of Giannis Antetokounmpo of the Bucks. He's 6'11" and apparently pretty raw.
More articles on Antetokounmpo:
A highlight showing his size and athleticism:
Michigan has an interesting scholarship situation with regard to '17-'18. Xavier Simpson will be the only true PG on the roster as of right now. And all of Michigan's small forward types will be seniors (I'm counting Ibi Watson as a two and DJ Wilson as a five).