National Car Rental has agreed to pay $158 million for the naming rights on a football stadium that is being planned by civic leaders in Missouri who are trying to keep the St. Louis Rams from moving to Los Angeles.
The deal, which will be announced Wednesday, is designed to show the 32 N.F.L. owners that the city and state can pay for the $1 billion stadium they hope to build if the Rams or another team agree to play there.
Under the proposed deal, the Rams or another N.F.L. tenant would pay about one-quarter of the stadium’s construction costs, or about $250 million.