A pitch invader runs alongside the ball during the 2014 World Cup round of 16 game between Belgium and the U.S. at the Fonte Nova arena in Salvador, July 1, 2014. [Photo/Agencies]

Germany's Thomas Mueller (L) shakes hands with a pitch invader during their 2014 World Cup Group G soccer match against the U.S. at the Pernambuco arena in Recife, June 26, 2014. [Photo/Agencies]