Don Nelson, legendary NBA coach and five-time champion player, dies at 86Milwaukee Bucks head coach Don Nelson reacts as he wipes his face with a towel during fourth quarter action against the Boston Celtics, Wednesday, May 24, 1984, Boston, Mass. (AP Photo/Mike Kullen)(AP) — Don Nelson, the second-winningest coach in NBA history who won five championships as a player with the Boston Celtics, died Sunday. Nelson’s death was announced by the Golden State Warriors, one of the teams he coached. His fast-paced offenses were probably best on display with Golden State in the “Run TMC” era featuring future Hall of Famers Tim Hardaway, Mitch Richmond and Chris Mullin. In his final season as a coach, Nelson mentored rookie Stephen Curry in 2009-10.