People attending Washington Nationals baseball games during the 2019 season will be able to both preorder food and get it delivered to their seats, in each case with Apple Pay as an option.

People who launch Caviar's delivery app from their seats will be able to preorder things like beer, wine, and Chinese food, thanks to a partnership between the Nationals and payment platform Square. Caviar has supported Apple Pay since at least 2016.

Once a game is underway, food and drink hawkers will be carrying Square's Apple Pay-compatible Terminal accessory as part of a pilot program. That will let fans avoid cash — the business benefit, meanwhile, is expected to be reduced transaction times, since hawkers should spend less time collecting money and making change. It may also streamline recordkeeping.

During a Monday press event, Apple revealed that some 70 percent of U.S. merchants now accept Apple Pay, stadiums among them. The company is also working on expanding metro transport compatibility in Chicago, Portland, and New York City.