Mark Cuban is taking a new swing at sports ownership, and it comes at a time when his grip on the Mavericks has clearly loosened.
According to ESPN, Cuban has joined Harbinger Sports Group as the group’s president in an effort to land a stake in the soon-to-be Las Vegas Athletics. The size of the ownership piece he could end up with has not been disclosed.
Harbinger Sports Group is led by founder and chief investment officer Rashaun Williams. Steve Cannon is the chief executive officer, and Jonathan Mariner is the managing partner. Mariner previously served as Major League Baseball’s chief financial officer.
The move arrives as Cuban’s role with the Mavericks continues to shrink after he sold a majority stake in the franchise to the Adelson family. He no longer has operational control of the team, and he has openly acknowledged disagreements with the current ownership in recent months, including legal action tied to the organization’s proposed arena plans.
That split could deepen even further. Under the original sale agreement, Cuban’s stake in the franchise could drop from 27 percent to 7 percent if the Adelson family exercises that option.
Brad Townsend of the Dallas Morning News reported that Cuban’s push for an MLB ownership opportunity is closely connected to his reduced influence in Dallas.
Meanwhile, the Mavericks have kept moving ahead without his input. Since the ownership change, the team has made several important offseason decisions, a sign of how different things look under the new leadership.
In Other News...
Mavericks Suddenly Have A Troubling Question About Their Wing Defense
Caleb Martin arrived in Dallas with the kind of reputation that usually buys a player a clear role: tough, versatile and reliable on the defensive end. The Mavericks traded Quentin Grimes for him at the 2025 deadline, and on paper Martin still looks like the sort of wing every contender needs, especially when the game tightens and every possession matters.
The problem is that Dallas does not have much room to spare on the wing, and Martins path to steady minutes may depend on doing more than guarding the other teams best perimeter threat. He is set to make $10 million next season and is under contract through 2028, so the Mavericks have every reason to want the fit to work, but the offense will have to hold up if he is going to carve out the kind of role his defense suggests. [Read more 🡒]
Mavs May Have Found A Rookie Who Can Help Sooner Than Expected
Morez Johnson Jr. has given the Mavericks an encouraging early look in Las Vegas, and it has come fast enough to make people around the team wonder how long it might take before his game translates to the next level. The recent Michigan standout, a No. 9 overall pick in the NBA Draft, has looked comfortable in Summer League action for Dallas, producing across the board while showing the kind of defensive presence that can travel with him once the games start to count.
Ryan Nembhard was among those impressed, pointing to Johnsons value beyond the box score and the way he affects both ends of the floor. That matters for a Mavericks team trying to sort out who can help under first-year coach Jason Kidd, who already knows Johnson from their time together at Michigan. The promise is obvious, but so is the patience required as Dallas figures out how quickly a rookie with this kind of two-way profile can be trusted in a real rotation. [Read more 🡒]
Mavericks Fans Have One Big Concern About Zaccharie Risacher's Fit
Zaccharie Risacher arrives in Dallas with the kind of long-wing profile that usually draws interest from teams trying to build a modern, versatile offense. The former No. 1 overall pick in the 2024 NBA Draft is still early in his career, and the Mavericks do have time to let his game breathe, with two years left on his rookie deal and a roster that is clearly being reshaped around youth and upside.
The question is whether this is the best environment for that development right now. Dallas has been operating in the bottom quarter of several key offensive categories, and a playmaker who thrives when a floor general can find him in the right spots may not always get that clean of a runway here. Kyrie Irvings return, Cooper Flaggs presence and the broader roster turnover could change the picture quickly, but for the moment the fit is still one of the more interesting issues hanging over the Mavericks youth movement. [Read more 🡒]
