Don Nelson, Second-Winningest NBA Coach Who Won 5 Titles as a Celtics Player, Dies at 86

Five Rings as a Celtic

Long before Nelson was drawing up plays from the sideline, he was earning a reputation in Boston as a smart, versatile forward who understood winning basketball. He played under four different Celtics head coaches and was part of five championship teams, absorbing the organizational culture that legendary executive Red Auerbach had built around team-first basketball and unconventional thinking. Nelson credited Auerbach as the single biggest influence on how he saw the game. That time in Boston shaped nearly everything about the coach he would become.

Building a Coaching Legacy Across Four Franchises

Nelson's head coaching career began in Milwaukee and stretched across three decades, taking him through the Golden State Warriors (two separate stints), the New York Knicks, and the Dallas Mavericks. At each NBA stop, he also served as general manager, giving him a level of control over roster construction that few coaches ever had. Over those 31 seasons, he made 18 playoff appearances and was named NBA Coach of the Year three times. The Basketball Writers Association of America and the NBA both recognized his work multiple times, and in 2012 he was inducted into the Naismith Memorial Basketball Hall of Fame as a coach. For nearly 12 years, Nelson held the all-time record for coaching victories outright. Gregg Popovich passed him in March 2022, but Nelson's 1,335 wins remain the second-highest total in league history.

"Nellie Ball" and the Point-Forward

Nelson's most lasting contribution was tactical. He pioneered the point-forward, putting bigger players in ball-handling and playmaking roles that had always belonged to guards. That positional flexibility, radical at the time, is now a baseline assumption of how NBA offenses are built. His broader philosophy, known as "Nellie Ball," centered on pace, spacing, and unconventional lineups. Nelson believed a fast, well-spaced offense could neutralize more talented but slower opponents, and he spent his career testing that belief. In the 1980s and 1990s, those ideas were considered eccentric. By the 2020s, they were standard.

The Run TMC Era and Golden State

Nelson's first stint with the Warriors produced some of the most entertaining basketball of his career. The "Run TMC" lineup, built around Tim Hardaway, Mitch Richmond, and Chris Mullin, was a high-scoring, fast-paced group that embodied everything Nelson believed about offensive basketball. The team never advanced deep into the playoffs, but it was genuinely exciting and gave Nelson a reputation as a coach who could build an identity that fans connected with.

Developing Nash, Nowitzki, and Curry

Dallas gave Nelson the chance to work with two future Hall of Famers at critical points in their development. He coached Steve Nash during Nash's first stint with the Mavericks and played a meaningful role in shaping him as a point guard. He also worked closely with Dirk Nowitzki in the German forward's early professional years, helping him develop the versatile offensive game that would eventually make him one of the greatest players in NBA history. During his second run with Golden State, Nelson worked with a young Stephen Curry, recognized his shooting ability early, and helped build his confidence at the professional level. That Nelson contributed to the development of all three players, each of whom became among the most decorated in the sport's history, says something real about his ability to identify and cultivate talent.

"We Believe" and the 2007 Upset

Nelson's second stint with the Warriors produced one of the most celebrated moments in playoff history. The 2007 Golden State team, seeded eighth in the Western Conference, upset the top-seeded Dallas Mavericks in the first round, becoming the first eight seed to eliminate a one seed in NBA history. The "We Believe" campaign that season captured the attention of basketball fans across the country, and Nelson's willingness to use unconventional lineups and prepare his team to compete against a heavily favored opponent made the upset possible. The Warriors organization confirmed Nelson's death in a statement Sunday and called him a foundational figure in franchise history.

Tributes From the NBA Community

Reactions came quickly from across the basketball world. Steve Kerr, the current Warriors head coach and a former Nelson player, called him one of the most original thinkers the game had ever seen. Kerr said Nelson's influence on pace-and-space basketball was direct and lasting, and that the modern Warriors style owed a genuine debt to what Nelson built in earlier decades. Stephen Curry, in a statement through the Warriors, said Nelson saw things in players that others missed and that his belief in young talent changed careers. Curry credited Nelson with giving him early opportunities that shaped the player he became. Baron Davis, who played for Nelson during the "We Believe" season, described him as a coach who made players feel capable of anything. Davis said Nelson's confidence in that 2007 group was the reason the upset happened.

A Legacy That Reshaped the Game

Don Nelson spent his entire adult life in basketball and left it fundamentally different from how he found it. The positions players occupy, the pace at which teams play, the value placed on spacing and versatility over size, all of it traces at least partially back to ideas Nelson developed and tested across four decades of coaching. He won five championships as a player. He won 1,335 games as a coach. He developed Hall of Fame talent. He produced one of the most celebrated upsets in playoff history. And he did all of it while consistently challenging conventional thinking about how the game should be played. His family's statement described him as a devoted father and grandfather who loved the game until the end.