NFL International Series

Since the 2007 season, the National Football League (NFL) has hosted regular season American football games outside of the United States every year in a series known as the NFL International Series.

Initially, all of the games in the International Series were held in London, England. Wembley Stadium was the exclusive home stadium for International Series games from 2007 to 2015 and will continue to host NFL games through at least 2020; beginning in 2016, the series began expanding to more stadia, first to Twickenham Stadium, London (2016–18) and to Estadio Azteca, Mexico City, Mexico (2016–) and will eventually expand to the still under construction new stadium at Northumberland Park also in London (2018–27).

Prior to 2005, the NFL's primary method of promoting its game abroad was through the American Bowl, a series of preseason games played around the world, and NFL Europe, a developmental league based in Europe. The American Bowls ended in 2005 (though a similar China Bowl was planned for 2007 before being cancelled), while NFL Europa (as it was known for its final season) folded in 2007. On October 2, 2005, the Arizona Cardinals defeated the San Francisco 49ers by a score of 31–14 at Estadio Azteca in Mexico City, Mexico under the name NFL Fútbol Americano. It was the first regular season NFL game held outside of the United States. The game drew the NFL's highest game attendance at the time with 103,467 spectators.

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