UEFA has threatened to boycott future World Cups if FIFA moves ahead with a proposal to allow private equity investors to buy stakes in the sport's global governing body, according to people familiar with the matter. The dispute marks a major escalation in a monthslong disagreement between FIFA and several regional football confederations over a plan that would let private investors take stakes in FIFA’s commercial rights.

FIFA’s proposed “investment unit” would permit outside capital to fund competitions, clubs and commercial rights, improving liquidity and enabling large upfront payouts. Critics argue the move could undermine governance, create conflicts of interest and compromise the sport’s integrity.

UEFA officials are particularly concerned about potential influence on competition formats and the distribution of revenues. They have told FIFA they could refuse to participate in future World Cups unless safeguards are implemented or the plan is abandoned entirely, the people said.

FIFA has defended the proposal, saying it would bring financial stability and allow for long-term investments in football development. Talks between FIFA and the confederations are ongoing.