The simmering conflict between world soccer’s governing body and its European counterpart erupted into a legal battle this week, as FIFA formally accused UEFA of pursuing a “smear campaign” over a failed proposal to sell stakes in the World Cup. The accusation came in a motion filed Thursday in U.S. District Court in Colorado, where FIFA asked the court to defer or dismiss discovery requests submitted by UEFA just days earlier.

The dispute centers on a plan known as FIFA Forward Enterprise (FFE), a proposal championed by FIFA president Gianni Infantino to sell minority stakes in the World Cup and other competitions to private equity investors for $4.2 billion. The plan was made public in late July but met with immediate and fierce opposition from European football federations, leading FIFA to withdraw it on August 1.

UEFA’s legal strategy involves three separate discovery requests filed in U.S. federal courts. One, filed in the Southern District of New York, seeks documents from Josh Kushner and his investment firm Thrive Capital Management. Kushner, the younger brother of Jared Kushner—former President Donald Trump’s son-in-law—was a key player in the FFE proposal. Another request was filed in Florida, where FIFA operated its 2026 World Cup logistical base, and a third in Colorado, targeting Greg Maffei, an adviser to Infantino and former CEO of Liberty Media.

In its Thursday filing, FIFA dismissed these legal maneuvers as thinly veiled public relations efforts. “While these applications are styled as legal pleadings with captions and docket numbers, they are little more than press releases in further support of UEFA’s smear campaign against FIFA and its leadership,” the organization argued.

UEFA’s discovery requests are part of a broader push to build a criminal case against Infantino. The European body has stated in court documents that it is preparing a criminal complaint in Swiss courts, alleging possible financial mismanagement related to the FFE proposal. UEFA’s lawyers painted the plan as a self-serving venture. “Infantino claimed that the plan would ‘unleash the commercial potential and opportunity that FIFA has,’” they wrote. “In truth, it was a vehicle for Infantino and that small circle to acquire a permanent stake in and otherwise profit from FIFA’s most valuable assets to the detriment of FIFA, its members, and other parties within the football family.”

FIFA countered that UEFA’s discovery request “suffers from a fundamental defect: UEFA seeks discovery in aid of a foreign criminal proceeding that does not exist and that UEFA admittedly lacks the authority to initiate.” The organization also accused UEFA of strong-arming its member federations into opposing the FFE plan.

Josh Kushner, through a statement to Axios on Monday, defended the proposal’s intent while acknowledging the misstep. “While we stand behind the motivations of FFE, we failed to appreciate the political dynamics of global football, and the lengths some would go to,” the statement read. “Thrive has a long track record of being a partner to all constituents. Had we known what this would devolve into, we would not have gotten involved.” Kushner recently agreed to purchase the NBA’s Los Angeles Lakers alongside partner Bob Iger.

The legal clash underscores the deepening rift between FIFA and UEFA, two organizations that have often been at odds over commercial and governance issues. The outcome of the discovery requests and the potential Swiss criminal complaint could have significant implications for Infantino’s leadership and the future of FIFA’s commercial strategy.