The NBA ownership carousel kept spinning on Tuesday, with private equity billionaire Tom Dundon agreeing to buy the Portland Trail Blazers for just over $4 billion from Paul Allen's estate. The league also approved Bill Chisholm's purchase of the Boston Celtics,

The sale price remains unclear, but Dundon's group includes Portland CEO Sheel Tyle and the collective intends to keep the team in Portland.

ESPN's Shams Charania reported Wednesday that Tom Dundon, who is the owner of the NHL's Carolina Hurricanes, is part of a group that agreed to purchase the Trail Blazers from Paul Allen's estate at a valuation of more than $4 billion.