This vote had long been viewed as a formality, but it is the last big step before ownership officially changes hands this season. The NBA said in a release that the transaction “is expected to close shortly.

Current Boston Celtics owner Wyc Grousbeck will no longer serve as lead governor following the team's $6.1 billion sale, ESPN's Shams Charania reported Tuesday. New owner Bill Chisholm, a managing partner at Symphony Technology Group, will assume the title of lead governor.

The NBA Board of Governors has unanimously approved the sale of the controlling interests in the Boston Celtics to a group led by Bill Chisholm. The transaction is expected to close shortly, according to the league.