Well Vlade played his whole career before seeing any criminal charges brought up...does Sasha HAVE to be in the NBA?
Let's say he shoots like he has, gets cut, and no one picks up him (unlikely). He can't just go play in Europe like Kinsey did last year? Bottom line he can play professionally if he wants to.
I think they just get exemptions to play in the NBA, but I'm not his lawyer. Maybe he could strike a deal where they'd let him play for a local club - like the Serbian Army team