Sports bettors in New York have to go to Jersey if they want to bet football this season.

New York voters in 2013 approved full-scale casino gambling for four upstate casinos, so after the Supreme Court legalized sports betting in May, it should have been simple to take action on premises immediately.

However, the New York State Gaming Commission this month is expected to issue regulations for brick-and-mortar sports betting, and then there will be a 60-day vetting of the rules, a source close to a casino said.

“The casinos will clearly miss this football season,” the source said.

A larger question is whether there needs to be a voter referendum to approve online sports betting because it was not addressed in the 2013 referendum.

The Seneca Indian tribes that run casinos want a piece of the sports-betting action, the source said.

Online sports betting in New York is not expected until 2021 or 2022, gaming analyst Eilers & Krejcik said.