Workers labor on the construction of the Arena Fonte Nova stadium, one of the hosts of the 2014 World Cup, in Salvador March 7, 2012. FIFA President Sepp Blatter apologized on Tuesday to Brazil's Sports Minister Aldo Rebelo for disparaging remarks made by FIFA general secretary Jerome Valcke about the country's slow progress in preparing for the tournament. Valcke had told the media that organizers in Brazil needed a "kick up the backside." Picture taken March 7. REUTERS/Lunae Parracho (BRAZIL - Tags: SPORT SOCCER POLITICS BUSINESS CONSTRUCTION WORLD CUP TRAVEL)