Nine European gambling regulators have pledged coordinated action against unlicensed prediction markets during the World Cup, warning sports bodies against partnerships just as Kalshi signs Argentina’s football federation and fronts Lionel Messi. The regulators of Belgium, France, Germany, Italy, the Netherlands, Poland, Portugal, Spain, and Switzerland declared in a June 17 statement that the World Cup’s expected betting surge is being amplified by prediction markets and that they agreed to cooperate closely against platforms that fail to meet local licensing rules for the duration of the tournament.