The Arizona Cardinals are the oldest continuous professional American football club in the United States and are based in the Phoenix. In 2006, the club began playing all home games at the University of Phoenix Stadium in Glendale.
The Cardinals are currently members of the Western Division of the National Football Conference (NFC) in the National Football League (NFL).
The team was formed in 1898 as the Morgan Athletic Club in Chicago. The club was then called the Racine Normals since they were originally located in Normal Park on Chicago's Racine Avenue.
Hoping to break a six-game losing streak, the Cardinals wore the red pants for the first time on October 29, 2006 in a game at Lambeau Field against the Green Bay Packers. The Packers won 31-14, and the Cards headed into their bye week with a 1-7 mark. Following their bye week, the Cardinals came out in their all-red combination at home against the Dallas Cowboys and lost, 27-10. Arizona has not worn the red pants since that loss to the Cowboys, and has won three of its last four games.
Since moving to the Phoenix area, the Cardinals practice what many other NFL teams located in subtropical climates traditionally do: wear their white jerseys at home during the first half of the season — forcing opponents to wear their dark ones under the hot autumns in Arizona. However, this tradition did not continue when the Cardinals moved to University of Phoenix Stadium in 2006, as early-season games are played with the roof closed. With the temperature inside at a comfortable 70 degrees, Green has opted to have the Cardinals wear their red jerseys at home full-time.