Jonathan Wilson: Euro 2012 Day 5: Poland and Russia clash; Czech Rep. restores hope

[Jonathan Wilson]

It was a day of howling sirens, blood-spattered pavement and the menacing thump of baton on riot shield as the warnings of violence before Poland's game with Russia proved to be distressingly accurate. As 5,000 Russians marched through Warsaw to celebrate their country's national day, they clashed with Polish hooligans. Police water cannons, tear gas, auditory grenades and 56 arrests were required to restore order.

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