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. 27 Mar 2000: Head Coach Don Nelson of the Dallas Mavericks yells on the court during the game against the Utah Jazz at the Delta Centerin Salt Laker City, Utah. The Mavericks defeated the Jazz 113-105.

(FILES) Golden State Warriors coach Don Nelson watches the action as the Warriors play the Milwaukee Bucks during an NBA preseason exhibition game in Beijing on 18 October, 2008 at the Beijing Basketball Arena. The Golden State Warriors defeated the Milwaukee Bucks 109-108. AFP PHOTO/Frederic J. BROWN. Don Nelson, the second-winningest coach in NBA history and a five-time champion as a player with the Boston Celtics, died on August 9, his family announced. He was 86. Nelson was a member of five NBA championship teams with Boston from 1966 to 1976 and the Celtics retired his jersey number 19. (Photo by Frederic J. BROWN / AFP via Getty Images)

​FILE - AUGUST 09: Don Nelson, the second-winningest coach in NBA history who won five championships as a Boston Celtics player, died on August 9. He was 86. Don Nelson, Head Coach for the Golden State Warriors looks on from the sideline with hands on hips during the NBA Pacific Division basketball game against the Los Angeles Lakers on 18th November 1990 at the Great Western Forum arena in Inglewood, Los Angeles, California, United States. The Lakers won the game 115 - 93. (Photo by Ken Levine/Allsport/Getty Images)

​FILE - AUGUST 09: Don Nelson, the second-winningest coach in NBA history who won five championships as a Boston Celtics player, died on August 9. He was 86. Don Nelson, Head Coach for the Milwaukee Bucks gives out hand sign instructions to his players during the NBA Pacific Division basketball game against the Los Angeles Lakers on 23rd November 1986 at The Forum arena in Inglewood, Los Angeles, California, United States. The Lakers won the game 127 - 117. (Photo by Otto Greule Jr/Allsport/Getty Images)

​FILE - AUGUST 09: Don Nelson, the second-winningest coach in NBA history who won five championships as a Boston Celtics player, died on August 9. He was 86. Head Coach Don Nelson looks on from the sideline as Terry Cummings #34, Power Forward and Small Forward for the Milwaukee Bucks shoots a three point jump shot to the basket over #42 James Worthy, Small Forward and Power Forward for the Los Angeles Lakers during their NBA Pacific Division basketball game on 23rd November 1986 at The Forum arena in Inglewood, Los Angeles, California, United States. The Los Angeles Lakers won the game 127 - 117. (Photo by Rick Stewart/Allsport/Getty Images)

TOPSHOT - San Antonio Spurs basketball player Victor Wembanyama (C) poses for a selfie as he takes part in the NBA Summer House at the Palais Brongniart in Paris on August 1, 2026. The two-day-event, organized by the NBA and the French Basketball Federation, celebrates the basketball culture with 3x3 tournaments, activities, and immersive experiences. (Photo by SIMON WOHLFAHRT / AFP via Getty Images)

San Antonio Spurs basketball player Victor Wembanyama takes part in the NBA Summer House at the Palais Brongniart in Paris on August 1, 2026. The two-day-event, organized by the NBA and the French Basketball Federation, celebrates the basketball culture with 3x3 tournaments, activities, and immersive experiences. (Photo by SIMON WOHLFAHRT / AFP via Getty Images)

San Antonio Spurs basketball player Victor Wembanyama (C) signs an autograph whilst taking part in the NBA Summer House at the Palais Brongniart in Paris on August 1, 2026. The two-day-event, organized by the NBA and the French Basketball Federation, celebrates the basketball culture with 3x3 tournaments, activities, and immersive experiences. (Photo by SIMON WOHLFAHRT / AFP via Getty Images)