CHICAGO (AP) — Chicago's transit agency will receive nearly $2 million in upfront cash from Groupon in a deal announced Wednesday to offer three-day passes on the daily bargain website.

Searching for new ways of raising revenue without hiking fares, the Chicago Transit Authority said it hoped the deal would encourage new ridership, especially among tourists and out-of-town visitors. Using Groupon's national platform is also a chance to extend the agency's visibility, it said.

"This is a great way to unite two highly visible and respected brands," said CTA President Forrest Claypool.