Former Augusta State All-American center Garret Siler is one of 18 remaining players on the roster. Siler has missed the past two preseason games with a groin injury.
Miles, a former Kansas standout who played with Golden State in the 2005-06 season, and Robinson, from Cal-State Fullerton, were with the Hawks as training camp invitees.
Miles scored 7 points in his only preseason game. Robinson averaged 0.7 points in three preseason games.