The National Hockey League has signed multiyear licensing deals with prediction market platforms Kalshi and Polymarket, becoming the first major U.S. professional sports league to permit the use of its trademarks by markets outside the sportsbook industry, the Wall Street Journal reported. The agreements allow both companies to use official NHL branding — including team names, the league logo and terms like “Stanley Cup” — in their respective platforms where users trade on the outcomes of sports events. ...