English hooligan culture has been largely eradicated.
These Russians and some Poles train MMA and do it as a sport.
Apparently their next target is the Ukraine-Poland game where they will support their Ukrainian brothers against the “Polish whores”.
These guys are trained in martial arts and take fighting seriously and from reports are teetoalers.
How can you have a drunken brawl if you don’t drink?
Fighting to them is a drug. Rival crews will text each other to meet to fight. It provides an adrenaline rush.