So the scene I am currently writing takes place at the Superbowl. The story is not about football. That's just the location of this scene. Obviously it's better if it's not team A vs. team B. To add some flavor it would be better to pick two real teams, which might just happen to be ones I'd like to see in the Superbowl. So the question is: Do I need permission to use names of NFL teams in this way? I can avoid naming players, given the intent of the scene. Thanks to anyone who knows the answer.