NBA approves record sale of Boston Celtics for $6.1 billion CTV NewsBoston Celtics’ $6.1 Billion Sale Approved by NBA’s Board of Governors Yahoo News CanadaNBA Owners Approve Chisholm, Mittal’s $6 Billion Celtics Deal Bloomberg.comNBA approves sale of Boston Celtics to Bill Chisholm for record-setting $6.1 billion price tag CBS SportsCeltics’ $6.1 Billion Sale Gets Massive Update From NBA Sports Illustrated