The Pittsburgh Steelers are a professional American football team based in Pittsburgh. The Steelers compete in the National Football League (NFL) as a member club of the American Football Conference (AFC) North division. Founded in 1933, the Steelers are the seventh-oldest franchise in the NFL, and the oldest franchise in the AFC.In contrast with their status as perennial also-rans in the pre-merger NFL, where they were the oldest team never to have won a league championship, the Steelers of the post-merger (modern) era are among the most successful NFL franchises, especially during their dynasty in the 1970s. The team is tied with the New England Patriots for the most Super Bowl titles at six, and they have both played in (sixteen times) and hosted (eleven times) more conference championship games than any other team in the NFL. The Steelers have also won eight AFC championships, tied with the Denver Broncos, but behind the Patriots' record eleven AFC championships. The team is tied with the Broncos and Dallas Cowboys for the second-most Super Bowl appearances with eight. They lost their most recent championship appearance, Super Bowl XLV, on February 6, 2011 where they lost to the Green Bay Packers.

The Steelers, whose history may be traced to a regional pro team that was established in the early 1920s, joined the NFL as the Pittsburgh Pirates on July 8, 1933. The team was owned by Art Rooney and took its original name from the baseball team of the same name, as was common practice for NFL teams at the time. To distinguish them from the baseball team, local media took to calling the football team the Rooneymen, an unofficial nickname that persisted for decades after the team had adopted its current nickname. The ownership of the Steelers has remained within the Rooney family since the organization's founding. Art Rooney's son, Dan Rooney, owned the team from 1988 until his death in 2017. Much control of the franchise has been given to Dan Rooney's son, Art Rooney II.

The Steelers enjoy a large, widespread fanbase nicknamed Steeler Nation. They currently play their home games at Heinz Field on Pittsburgh's North Side in the North Shore neighborhood, which also hosts the University of Pittsburgh Panthers. Built in 2001, the stadium replaced Three Rivers Stadium, which had hosted the Steelers for 31 seasons. Prior to Three Rivers, the Steelers had played their games in Pitt Stadium and at Forbes Field.

The Philadelphia Eagles are a professional American football team based in Philadelphia. The Eagles compete in the National Football League (NFL) as a member club of the league's National Football Conference (NFC) East division. The team plays its home games at Lincoln Financial Field.The franchise was established in 1933 as a replacement for the bankrupt Frankford Yellow Jackets, when a group led by Bert Bell secured the rights to an NFL franchise in Philadelphia. Since their formation, the Eagles have appeared in the playoffs 27 times, won 14 division titles (11 in the NFC East), appeared in four pre-merger NFL Championship Games, winning three of them (1948, 1949, and 1960), and appeared in three Super Bowls, winning Super Bowl LII at the end of the 2017 season. Bell, Chuck Bednarik, Bob Brown, Brian Dawkins, Reggie White, Steve Van Buren, Tommy McDonald, Dick Vermeil, Greasy Neale, Pete Pihos, Harold Carmichael, Sonny Jurgensen, and Norm Van Brocklin have been inducted to the Pro Football Hall of Fame.

The team has had an intense rivalry with the New York Giants. This rivalry was the oldest in the NFC East and was among the oldest in the NFL. It was ranked by NFL Network as the number one rivalry of all-time, Sports Illustrated ranks it as the fourth-best rivalry in the NFL, and according to ESPN, it is one of the fiercest and most well-known rivalries in the American football community. They also have a bitter rivalry with the Dallas Cowboys, which has become more high-profile since the 1960s, as well as a historic rivalry with the Washington Commanders. Their rivalry with the Pittsburgh Steelers is another bitter rivalry known as the battle of Pennsylvania, roughly dating back to 1933. The team ranked among the best in the league in attendance and sold out every game since the 1999 season.The Eagles are owned by Jeffrey Lurie, who bought the team from previous owner Norman Braman for $195 million on May 6, 1994. In 2017, Forbes valued the club at $2.65 billion, ranking them 10th among NFL teams in value.