The Boston Celtics’ ballooning payroll allegedly sparked a rift within the family that owns the team – leading the aging patriarch to demand his free-spending son sell the iconic franchise, The Post has learned.
Irving Grousbeck, a 90-year-old Massachusetts-born entrepreneur who owns a controlling roughly 20% stake in the team, balked at funding big losses on the horizon from the massive contracts that helped the Celtics capture a record 18th NBA championship in June, multiple sources told The Post.
To win that title, his 63-year-old son Wyc Grousbeck put together the league’s priciest roster – one that is projected to cost around $500 million for the 2025-26 season after shelling out big-buck contracts this summer to lock up its stars.
Wyc Grousbeck — who owns a roughly 3% stake but is the front-facing owner — announced the surprise decision to put his beloved hometown team up for sale shortly after hoisting the NBA trophy.
