TOPSHOTS Riot police forces stand guard during a demonstration by striking subway workers and members of the MTST (Homeless Workers' Movement), on June 9, 2014 in Sao Paulo, Brazil. Metro's workers demand 12.2 percent salary raise. The five-day-old strike has already caused massive traffic jams in Brazil's largest city as its new stadium prepares to welcome more than 60,000 fans for June 12 Brazil-Croatia game. AFP PHOTO/NELSON ALMEIDA