I have a feeling there will be more trouble and am mainly concerned when it comes to Russia's final game of the group stages where they play Wales.
It isn't because Wales are my team. It's just that Russia might end up having nothing to play for at that point or not gain enough points to enter the knock-out stages that the rioters will kick off some more.
Hell, even if Russia do manage to make it to the next round, the game where they end up eliminated will be dangerous for the supporters of whichever team they're playing.
FIFA should get involved and threaten to withdraw the country from hosting the World Cup in two years if there is any more trouble from them,
In fact, if I were in charge of FIFA, I'd seriously reconsider giving Russia the privilege of the 2018 tournament.
It's a shame to all the real fans of Russia, I know.