A shocking video posted in a football forum shows the Russian women attacking one another in a secluded snowy forest - allegedly ahead of the World Cup.
Hundreds of people have commented saying "don't show this to the English" and that it would be "fun" to see the women attack British football fans travelling to Russia in June.
The staged fight shows female ultras charging at one another, before punches are thrown.
Many women are left reeling within moments of the horrific brawl - which is between two groups of seven - starting.
Others left lying in the snow are repeatedly kicked, as bystanders watch and film it on their phones but do little to help.
One onlooker could be seen with their head in their hands, appearing distressed.