Mentioned as a possibility for the Spurs first round pick in Chad Ford's latest mock draft. The kid can flat fill it up, and though he's a bit short for the wing, he makes up for it with above average wingspan. He also has a rep as a committed defender, though he's not a lockdown player by any means. As is mentioned by the OP, he projects as a top-15 pick from a statistical perspective.
I don't think the Spurs have worked him out, but I wouldn't be surprised if he's the pick. He could come in pretty quickly and grow into the Beli role.