WARSAW (Reuters) - Croatia became the first country to be charged over racism at Euro 2012 on Saturday and police and calculators were out in force before the final round of Group A matches got under way. With Russia facing Greece in Warsaw and co-hosts Poland meeting the Czech Republic in Wroclaw to decide who qualifies for the quarter-finals, police pledged to protect thousands of fans expected in the Polish capital and avoid a repeat of Tuesday's violence. Twenty thousand Russians and 4,000 Greeks have tickets to their match and Warsaw's 100,000-capacity fanzone is expected to be full. ... More...