Poland and Russia's Euro 2012 match always looked like it would be a volatile affair.
Centuries of conflict between the two, and Soviet domination of Poland after the Second War, helped fuel animosity between the rival fans.
Violence erupted before the game as police came under a hail of rocks, bottles and flares.
It carried on as supporters left the ground after the match ended in a one-all draw.
At least 100 people were arrested.
Some 20, 000 Russian fans descended on the Polish capital for the match.
Paul Chapman, Reuters