One week before the NBA touches down in Las Vegas for the final of its inaugural In-Season Tournament, Sin City has forged another link to the hardwood. The family of the late casino mogul Sheldon Adelson has agreed to buy a majority stake in the Dallas Mavericks from entrepreneur Mark Cuban, a source familiar with the deal said Tuesday.

Las Vegas Sands disclosed plans by Miriam Adelson, Sheldon Adelson’s widow, to sell an estimated $2 billion in stock in the company, which a regulatory filing said would be “used to fund the purchase of a majority interest in a professional sports franchise…subject to customary league approvals.” NBA reporter Marc Stein first reported that the franchise in question would be the Mavericks.