Mark Cuban accuses Dallas Mavericks governor Patrick Dumont and the team’s ownership group of freezing him out of business opportunities tied to a proposed arena-related move, according to reports. Multiple outlets say Cuban is pointing to an effort to relocate the club out of downtown as the context for his complaint. The reports state that Cuban, who previously served as the Mavericks’ majority owner, claims he is being shut out despite his past role with the team. The allegation centers on Cuban being excluded from opportunities associated with the proposed change, as described by the newspaper coverage cited in the reports. The coverage does not detail the specific business opportunities Cuban says he was denied, nor does it provide an ownership response within the information supplied here. The accounts also indicate the dispute is connected to the team’s planning around the planned relocation, with Cuban portraying the situation as part of a broader attempt to remove him from involvement going forward. Overall, the outlets present the matter as an accusation reported by newspapers rather than as a confirmed finding, with details limited to Cuban’s claims.