MetroCard machines are now randomly dispensing Super Bowl-themed cards as a way to promote the championship game at MetLife Stadium next month.
The MTA says 1 million cards were printed with four different designs, and can be found in 400 of the 468 stations in the subway system.
The MTA says anyone who buys a MetroCard now through Feb. 3 isn't guaranteed a Super Bowl card; machines are set to randomly dispense.
The Super Bowl Host Committee paid for the campaign, the MTA said. It did not reveal how much the agency was paid, but said ads on cards cost 18 cents to 51 cents per card, depending on the number of cards bought.
It is the 10th MetroCard ad campaign in MTA history.