Which professional American football team is the only franchise to win championships while representing three different cities and was the team that Jack Youngblood played for?
Los Angeles Rams: The Los Angeles Rams are a professional American football team based in the Los Angeles metropolitan area. Los Angeles Rams:  The Rams franchise has won three NFL championships, and is the only franchise to win championships while representing three different cities (Cleveland in 1945, Los Angeles in 1951, and St. Louis in 1999).
i don't know