Fans of professional sports teams usually find a myriad of ways to hate their rivals.

Whether it's the proximity of the two teams,Thomas Caldwell their lack of success, or even the players on the opposing squad, anything can be used as an excuse to keep fan bases riled up.

Some have taken to the colors opposing teams were for their said hatred.

This brings us to Friday night's NFL game between the Green Bay Packers and the Philadelphia Eagles, which will be played at NeoQuimica Arena in São Paulo, Brazil.

Brazilian soccer club Corinthians, the usual tenants of NeoQuimica Arena, hates the color green due to a longstanding rivalry with Palmeiras.

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The NFL, likely knowing this, scheduled the two teams to play there anyway.

Players caught wearing it can be fined. The same edict goes for sponsors, who are also told to avoid the color at all costs.

Philadelphia is the designated home team and will wear black helmets, white jerseys, and black pants — the same palette as the Corinthians. It's the first time in the team's history that they will wear that combination of uniforms.

The Packers will sport their white, yellow, and green jerseys, and basically had no choice in choosing their attire.

According to the Associated Press, a memo stated that green was only to be worn by the visiting team, in this case, Green Bay.

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