A group headed by Bill Chisholm is set to take control of the Boston Celtics after the NBA Board of Governors unanimously approved the sale on Wednesday.

The NBA’s Board of Governors approved the sale of the Celtics to Bill Chisholm, a move that was already in the works.

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.