Hall of Famer Tom Heinsohn -- who won 10 titles for the Boston Celtics as a player and coach -- has died, according to multiple reports. He was 86.
Heinsohn is the only person to have ties to each of the Celtics' 17 championships ... going on to spend 30 years as a beloved color commentator after his coaching career.
Tom was a 6-time All-Star on the court ... winning Rookie of the Year honors in 1957. Heinsohn -- AKA "Tommy Gun" -- averaged 18.6 points in 654 games in his career.
He retired as a player in 1965 .