Basketball legend Don Nelson, second-winningest NBA coach and Celtics champion, dies at 86

Don Nelson, one of professional basketball's most successful coaches, has passed away at 86. Nelson spent decades leading NBA teams and compiled the second-most wins in coaching history. He also had a distinguished playing career with the Boston Celtics, winning five championship titles as a player before transitioning to coaching. His legacy spans both eras of the sport as a transformative figure in basketball.