Cuban-Dumont Feud Escalates Amid Mavericks Arena Plans

The Dallas Mavericks have never been the same since the Luka Doncic trade as ramifications still seem to trickle out from that, with the latest involving issues of ownership.

Mark Cuban claims that Mavs governor Patrick Dumont has been freezing him out, but this time, it’s over real estate.

According to Mavs Roundtable, Cuban is alleging that there are "adversarial business practices" involved in the move of the team to a new site.

However, this is not a new fight, with seeds planted back in 2023 when Cuban sold his majority stake of the franchise to the Adelson and Dumont families.

Per Cuba, he had a deal in place to keep running the basketball ops side.

Enter then-GM Nico Harrison, who Dumont gave the keys of the kingdom to.

To read more about the filing in an exclusive, here’s the full story from Mavs Roundtable writer Mike Fisher.

Harrison promptly blew up the core of the organization when he traded away Doncic, something Cuban never saw coming until it couldn’t be stopped.

The trade was so catastrophic that the parties are still reeling, and it cost Harrison his job last November.

Now, while Cuban still holds a piece of the team, it’s not guaranteed to him.

He currently holds a 27 percent stake, but there is a clause that allows the Adelson and Dumont families to buy 20 percent of his stake.

The heart of the matter is a new arena that Cuban wants an opportunity to be a part of the business dealings.

The arena is targeting a 2031 opening with an option agreement for approx. 140 acres in north Dallas.

Cuban thinks his right to participate in the investment opportunity is contractually guaranteed.