Mark Cuban has taken his fight with the Mavericks’ new ownership into Dallas County District Court, filing a pre-suit request tied to the team’s plan for a new arena and naming Patrick Dumont in the process.
The filing, made Tuesday by companies owned by Cuban, seeks what’s known as a Rule 202 application. That’s a pre-suit move that allows discovery, including depositions and document production, to investigate possible claims against Arena Development Intermediate LLC, the entity described as being set up by Dumont and the Mavericks to handle development of the new arena and related opportunities.
At the center of Cuban’s complaint is the claim that he is being kept out of information and decisions involving the arena in a way that cuts against his “existing contracts and rights.”
The filing goes further, saying ADI’s “non-disclosure is consistent with Dumont’s adversarial business practices and history of failing to uphold his end of the bargain.”
That “bargain,” according to Cuban’s filing, traces back to the December 2023 sale of the Mavericks to Dumont and the Adelson family for $3.5 billion. Cuban says there was a “handshake deal” that drew a clear line between the two sides: he would keep authority over basketball operations, while Dumont would handle the business side, including real estate development and the push for an integrated, destination resort casino in Dallas.
Cuban’s filing says that didn’t happen. In his written claim, he says, “Dumont did not fulfill his end of this agreement, and I did not retain control over basketball operations. Instead, former General Manager Nico Harrison was put in charge, leading to the trade of Luka Dončić.
The filing also says Cuban backed the Adelson family’s Las Vegas Sands effort because he believed “that having a Venetian-style destination resort would turn Dallas into the largest tourist destination in the United States and be worth potentially $10 billion.
For now, the relationship Cuban describes is no longer intact. The filing suggests the dispute may end up back in court.
In Other News...
Mavericks Finally Land Long-Stashed Shooter After One Major Hurdle
Tarik Biberovic is finally on the verge of making the move the Mavericks have had his rights stashed for, with the 24-year-old wing informing Fenerbahce that he will leave the EuroLeague to sign in Dallas. The deal is expected to run two years and carry a second-year team option, a tidy bit of business for a team still looking to add shooting and long-term flexibility around its core.
The path to getting it done was not simple, though, and the timing mattered. Biberovic had to clear an opt-out deadline tied to his Fenerbahce contract, and the Mavericks also had to navigate the buyout process under NBA rules before the signing could become official. For Dallas, it is the kind of overseas holdover resolution that can quietly matter, especially when a player has been on the radar long enough to become part of the franchises future planning. [Read more 🡒]
Mavericks May Have Finally Fixed The Problem Around Cooper Flagg
The Mavericks spent the offseason attacking the same flaw that showed up too often last year: too many lineups that could not punish defenses from the perimeter. Through the 2026 draft and a series of trades, Dallas has added a cluster of players who at least bring shooting into the conversation, including Morez Johnson Jr., Sergio De Larrea and the draft rights to Vsevolod Ishchenko, while also bringing in Santi Aldama and Marcus Sasser to help reshape the spacing around Cooper Flagg.
Aldama is the most intriguing of the bunch because he gives Dallas a 7-foot forward who can stretch the floor, and Sasser offers another backcourt option who can score and shoot from deep. The bigger question now is how much of this shooting makeover actually sticks once the roster is finalized, because the Mavericks still have one more move in the pipeline that could determine whether this really is the fix they were looking for. [Read more 🡒]
Lakers Are Chasing Luka's Old Mavs Formula For Better Or Worse
The Lakers latest roster-building push has a familiar feel for anyone who watched Luka Doncic operate in Dallas, because the pieces around him are starting to resemble the kind of setup the Mavericks used in 2024. The comparison is obvious in the way Los Angeles is trying to match up key positions and give Doncic the same sort of structural support that helped Dallas reach the Finals, even if the exact names and fit are not identical.
But there is a reason this kind of copycat approach comes with caution attached. Dallas version of the formula did not end with a championship, and the Lakers still have to answer the same kind of roster questions that can make or break a contender, especially on the wing where a dependable perimeter defender remains a major need. For Los Angeles, the challenge is not just looking like the Mavericks did, but proving the blueprint can actually take a team all the way. [Read more 🡒]
