Representative of the National Football League (NFL) Arturo Oliver shows football helmets to the media to promote the regular season game between Houston Texans and Oakland Raiders, in Mexico City, Mexico July 19, 2016.

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Representative of the National Football League (NFL) Arturo Oliver shows football helmets to the media to promote the regular season game between Houston Texans and Oakland Raiders, in Mexico City, Mexico July 19, 2016.

NFL official Arturo Oliver shows football helmets to the media to promote the regular season game between the Houston Texans and Oakland Raiders.

Credit:

Henry Romero/Reuters