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What makes this year’s centennial N.F.L. season different from all other seasons?

A wide expansion of sports betting. Last year, the Supreme Court struck down a law that had banned sports gambling in most states. So this season, football fans in 12 states will be able to partake in some form of legal sports gambling. Several more states have launches in the works.

“But fans hoping that spread will radically reshape how they watch America’s most popular betting sport will be left disappointed, at least for now,” Kevin Draper writes. “This year’s N.F.L. will look a lot like last year’s N.F.L., which looked like the previous year’s N.F.L.”

Residents in states with legalized betting make up less than 20 percent of the U.S. population, and many places require fans to register at a casino. In New York, bets can only be placed in-person at four upstate casinos. Or, gamblers can take a train to New Jersey, the state with the most liberal mobile betting rules, and bet on their phone.