The Joliet Slammers are a professional baseball team based in Joliet, Illinois, that play in the independent Frontier League. They play their home games at Duly Health and Care Field. They replaced the Joliet JackHammers of the Northern League after the franchise was crippled by numerous financial issues. The JackHammers franchise was put up for sale and Steel City Baseball, LLC, bought out all assets, including the front office, the ticketing system, and the lease of the ballpark. The company behind the popular card game Cards Against Humanity announced in December 2017 that they had purchased the naming rights to the stadium, calling it the "Cards Against Humanity Baseball Place", but the company's claim has been disputed by Slammers management.