The NFL is all in on sports betting, with a massive partnership with DraftKings, FanDuel and Caesars Entertainment, plus new sportsbooks in stadiums – as long as they are legal in your state. It’s all part of the league’s embrace of sports wagering, which has become an essential component in their revenue model now that a majority of states have legalized it.

But the leagues’ enthusiasm for this new form of gambling has raised concerns among some players and college athletic directors, particularly because of the proliferation of player prop bets – wagers on specific aspects of a game or event that don’t have anything to do with what happens on the field. Those bets can create circumstances where student-athletes or others on campus are targeted by bettors with gambling interests, and the NCAA has warned that these problems threaten the health and well-being of students and the integrity of NCAA competition.

As a result, the NBA and MLB are pushing for official data to be a requirement in sports betting laws, starting with a proposal in West Virginia this year. But it has been difficult to get legislators and regulators on board. Amid that debate, the American Gaming Association has supported private commercial agreements but opposed legislative mandates. As of late, Tennessee and Illinois are the only states with an official data requirement in their sports betting laws. The other two, including Nevada, give regulatory bodies discretion on the sources they use for official betting information.