Polymarket signs LeBron James for football campaign

LeBron James teased an upcoming partnership with Polymarket on Sept. 5, placing the NBA star alongside a growing group of athletes and professional leagues working with prediction-market companies. Summary LeBron James confirmed an upcoming Polymarket partnership through a 14-second social media teaser Saturday publicly. CNBC reported the initial campaign will focus on American football, not rugby, citing one source. Neither James nor Polymarket has disclosed payment terms, ownership interests or campaign responsibilities yet publicly. NBA rules permit non-basketball endorsements while restricting player ownership stakes in NBA-related wagering companies directly. Polymarket has expanded sports partnerships across MLB, MLS, NHL, ATP Tour and individual teams recently. James shared a 14-second video showing him entering a fictional Polymarket headquarters and selecting a floor marked for sports. “Welcome to Polymarket HQ. Coming soon,” he wrote. The post confirms that a partnership exists but provides no details about James’s role. Neither James nor Polymarket has disclosed the duration, compensation, ownership terms or specific promotional commitments. CNBC reported that the compan...