Paul Pierce, Jaylen Brown, Brad Stevens and the NBA world pay tribute to Tommy Heinsohn

Tommy Heinsohn dies at age 86 (2:07)

Michael Wilbon and Tony Kornheiser remember Celtics legendary player, coach and broadcaster Tommy Heinsohn, who died Tuesday at the age of 86. (2:07)

Boston Celtics great Tommy Heinsohn, who won 10 titles as both a Hall of Fame player and head coach before becoming an ambassador for the Celtics as a color commentator for over 30 seasons, has died at the age of 86.

"[Heinsohn was an] unofficial mentor to decades of Celtics coaches and players. A frequent constructive critic of referees. Originator of the most 'Celtic stat' of them all, The Tommy Point," the Celtics said in a statement. "And a boundless love for all things Boston Celtics, a passion which he shared with fans over 64 years."

Celtics of the past and present, as well as players and teams across the league, paid tribute to the late Boston legend.

Longtime voice of the Celtics and Heinsohn's broadcast partner, Mike Gorman, said "Celtics Nation has lost its finest voice."

NBA teams -- and the NHL's Boston Bruins, who share the TD Garden with the Celtics -- also showed their support for the franchise on social media.