7 / 16
A handcuffed Polish fan lies flat on the street prior to the Euro 2012 soccer championship Group A match between Poland and Russia in Warsaw, Poland, Tuesday, June 12, 2012. Russian soccer fans clashed with police and Poland supporters in separate incidents in Warsaw on Tuesday, just hours before the two teams were to meet in an emotionally charged European Championship match. Several people were injured. (AP Photo/Gero Breloer)

Euro fans clash with police

Police used tear gas and water cannon against brawling football fans in Warsaw on June 12 as Poland geared up to play old foe Russia in a key Euro 2012 duel.