A labourer works at the assembly line of Panini's factory, where FIFA's Brazil World Cup stickers and albums are produced, in Tambore, an industrial suburb north of Sao Paulo May 5, 2014. The World Cup is around the corner and millions of fans are putting down their iPads to collect and trade soccer stickers, a decades-old hobby that has defied the digital age. Picture taken May 5, 2014. REUTERS/Paulo Whitaker (BRAZIL - Tags: SPORT SOCCER WORLD CUP SOCIETY BUSINESS TPX IMAGES OF THE DAY)