Wikipedia
Card-Pitt
Card-Pitt was the name for the team created by the temporary merger of two National Football League (NFL) teams, the Pittsburgh Steelers and the Chicago Cardinals, during the 1944 season. It was the second such merger for the Steelers, who had combined with the Philadelphia Eagles in 1943 to form the " Steagles". The arrangement was made necessary by the loss of numerous players to World War II military service, and was dissolved upon completion of the season. The war ended before the start of the 1945 season, and both teams resumed normal operations.
Card-Pitt finished with a 0–10 record in the Western Division, which led sportswriters to derisively label the team the "Car-Pitts", or "carpets".