VIDEO: England fan bites off another fan's ear
The incident took place a few days before Uruguay striker Luis Suarez bit Italian defender Giorgio Chiellini on 24 June.
Suarez was subsequently found guilty and received a lengthy ban from FIFA.
But, in this case, it is believed to have involved two England supporters on the top tier of the Arena Conrinthians on 19 June.
Video footage of the incident, which is currently being scrutinised by police, has leaked.
The Drive Team managed to get its paws on the footage.
We have silenced the audio as it contains a great deal of explicit language.
WARNING: Some might find the visuals disturbing.
Take a look. Feel free to leave your thoughts.