In high school , he averaged 23.9 points per game and was the MVP of his conference .
He is the son of former New York Knicks guard , and current Washington Wizards executive , Ernie Grunfeld .
In high school , son averaged 23.9 points per game and was the MVP of son 's conference .
He is the son of former New York Knicks guard , and current Washington Wizards executive , Ernie Grunfeld .