Bill Russell’s death led to a tremendous outpouring of condolences from the NBA world on Sunday.

Russell’s family announced the legendary NBA center died at 88. He passed away peacefully with his wife by his side, a statement read. He played his entire career with the Boston Celtics and coached for them as well. He was also the head coach of the Seattle SuperSonics and Sacramento Kings.

During his illustrious career, Russell was a 12-time All-star, 11-time NBA champion, five-time MVP and an 11-time All-NBA selection.