 And that's just to name a few. Donnie Nelson Jr., remember, used to coach the Mavericks. His dad was Donnie Nelson Sr., the NBA Hall of Famer. Like, this is all throughout the NBA. Even on the court, you see Giannis' brother playing with the Bucs. J.R. Smith, who was not a star, his brother had a cup of coffee with the Knicks for a little while when J.R. was there. It happens.