Sale Of Celtics Reportedly Due To Increasing Salary, Luxury Tax Obligations

The decision by the Grousbeck family to sell the Boston Celtics was initiated by Irving Grousbeck's concerns over the franchise's increasing payroll obligations, sources tell the New York Post. Irving Grousbeck owns a controlling interest of approximately 20 percent of the Celtics, while Wyc Grousbeck is the franchise's..

. Sep.