Around the world in four downs: A history of NFL games played outside the USA
Chart: Countries with the most NFL fans outside the US
Why does the NFL play games in London?
The NFL Returns to the Raucous German Fan Base It Left Behind - The Ringer
How Much Football Is Even In A Football Broadcast?
Big Game: The NFL in Dangerous Times: 9780399185427: Leibovich, Mark: Books
History of NFL games in London: Giants vs. Packers first game between teams with winning records
N.F.L. Playoff Predictions: Our Picks in the Divisional Round - The New York Times
Remembering 9/11: 'This wasn't the time to play football'
10 Facts About the NFL Draft
National Football League (NFL), History, Teams, & Facts
NFL International Series: History of games outside America – NBC New York
Top 10 Facts about the Super Bowl! - Fun Kids - the UK's children's radio station