If you’ve been following the FIFA World Cup matches this year, you might have asked yourself why the stadiums changed their names for the tournament. That’s because FIFA’s rules prohibit the display of sponsors that are not official partners of either the organisation or the World Cup. As a result, host venues must temporarily remove or conceal branding linked to existing naming-rights agreements.

Most stadiums will therefore be referred to by simplified names based on their location, such as Atlanta Stadium instead of the Mercedes-Benz Stadium, and Boston Stadium instead of Gillette Stadium.

At Atlanta’s Mercedes-Benz Stadium, the Mercedes-Benz logo on the side of the venue has been covered by a FIFA-branded banner. Meanwhile, Gillette Stadium has concealed the branding associated with the razor company behind large white coverings. Kansas City has gone even further, removing the “GEHA” lettering entirely from GEHA Field at Arrowhead Stadium to ensure the venue meets FIFA’s commercial requirements ahead of the tournament.

Atlanta Stadium, however, received a special exemption. According to The Athletic, after 18 months of discussions, officials concluded that removing or covering the Mercedes-Benz logo on the roof could risk damaging the structure.