Rio airport staff declare partial strike for World Cup kick-off Ground staff at Rio de Janeiro's three airports will stage a 24-hour partial strike Thursday, the day Brazil hosts the opening match of the World Cup, their union said. The workers vowed to maintain 80 percent service, but the strike will nevertheless raise fears of delays as a flood of football fans descends on the tourist-magnet city around the opening match in Sao Paulo and first match in Rio on Sunday. File images of planes of diferents air companies at Rio de Janeiro's airoport. TO GO WITH VID568282_EN