Before the NFL can take money from prediction market companies like Kalshi and Polymarket, the league needs to do some weeding as to the bets they offer. That process has begun.
https://www.nbcsports.com/nfl/profootballtalk/rumor-mill/news/nfl-asks-prediction-markets-to-not-offer-certain-types-of-wagers#
https://www.nbcsports.com/nfl/profootballtalk/rumor-mill/news/nfl-asks-prediction-markets-to-not-offer-certain-types-of-wagers#