Two brawls between fans took place in the stands in Philadelphia and Arizona.
The upper decks of NFL stadiums were no place to be on Sunday. Videos of two brawls there during this weekend's games have emerged.
Warning: The videos below have graphic footage
The fight sent several fans tumbling down the stairs with security desperately trying to stop the melee. The Cardinals (3-0) won the game 23-14, dropping San Francisco to 1-2.
The second fight occurred in Philadelphia, where the Eagles played the Washington Redskins (1-2). After an on-field fight broke out in the fourth quarter near the Redskins sideline when Eagles quarterback Nick Foles was leveled by defensive lineman Chris Baker, fans got into it in the stands as security once again scrambled to break up the fight. Philadelphia (3-0) won the game 37-34.
- Scooby Axson