Vinicius Junior and Richarlison appeared to be embroiled in a training ground bust-up while away on international duty with Brazil.
The two forwards clashed over an unspecified incident that took place ahead of their match with Japan.
The Everton striker appears to reach out towards the Real Madrid forward and pull the part of his shirt just beneath his neck.
This sprung the experienced heads of the squad, such as Dani Alves and Neymar, to attempt to pull Richarlison away.
However, Richarlison continued to edge towards the young forward in an attempt to cause him harm.
Meanwhile, Vinicius appears calm in the footage of the incident, despite being the target of the attack.