Heinz Field is a stadium located in the North Shore neighborhood of Pittsburgh, Pennsylvania, United States. It primarily serves as the home to the Pittsburgh Steelers of the National Football League (NFL) and the Pittsburgh Panthers of the National Collegiate Athletic Association (NCAA). The stadium opened in 2001, after the controlled implosion of the teams' previous stadium, Three Rivers Stadium. The stadium is named for the locally based H. J. Heinz Company, which purchased the naming rights in 2001. It hosted the 2011 NHL Winter Classic between the Pittsburgh Penguins and Washington Capitals on January 1, 2011. On September 10, 2016 it hosted the Keystone Classic, which featured a renewal of the Penn State-Pitt football rivalry, setting a new attendance record at 69,983 people.