Bill Russell, a Boston Celtics hero and 11-time NBA champion, passed away at age 88.

Bill Russell, one of the most significant figures in NBA history and an 11-time NBA champion with the

Boston Celtics as a player and coach, passed away on Sunday at the age of 88, his family announced.

With his wife Jeannine by his side, Russell passed away peacefully. The following statement was released by his family.

We are sending the following message to all of Bill's friends, fans, and supporters with a heavy heart:

At age 88, Bill Russell, the most successful sports figure in American history, passed away quietly with

his wife Jeannine by his side. Arrangements for his funeral service will shortly be made public.

Bill's two high school state championships were a glimpse of the unparalleled string of team achievements that

that would follow: two NCAA championships, a captain of the US Olympic team that won a gold medal,

11 NBA titles, and two NBA championship games as the first Black head coach of any North American professional sports team.