There were concerns that he might not return after his contract was up, and his status in terms of health was unclear after a knee injury.

The Celtics have made it official with the leadership structure between new governor Bill Chisholm and longtime owner Wyc Grousbeck.

Bill Chisholm has officially completed his $6.1 billion purchase of the Celtics from Wyc Grousbeck and is the team's new owner.

The Boston Celtics are officially under new leadership today, and it’s not just about a record‑setting price tag. The NBA Board of Governors has unanimously approved the $6.1 billion sale of the franchise to private equity executive and lifelong fan Bill Chisholm.

Bill Chisholm and Wyc Grousbeck's changes in the Celtics' ownership structure was only on paper, according to a new report.