FILE: Don Nelson, who won five NBA titles as a player with the Boston Celtics, and went on to be named Coach of the Year three times, has died at the age of 86. 1989: Head coach Don Nelson of the Golden State Warriors looks on during an NBA game in the 1989-90 season. NOTE TO USER: User expressly acknowledges and agrees that, by downloading and/or using this Photograph, User is consenting to the terms and conditions of the Getty Images License Agreement. (Photo by: Ken Levine/Getty Images