Cameroon's forward Fabrice Olinga (L) attends a training session at the Das Dunas stadium in Natal on June 12, 2014 on the eve of their 2014 FIFA World Cup football match against Mexico in Brazil.
An aerial view of the Arena das Dunas in Natal, Brazil. The arena will host the match between Mexico and Cameroon on June 13.
Chile's national team player Alexis Sanchez waves during a training session at Toca da Raposa 2, in Belo Horizonte, Brazil. Chile will play in group B, their first match against Australia.
Australia's coach Ange Postecoglou (L) and midfielder Mile Jedinak (R) speak at a press conference after the team's final training run in Cuiaba, Brazil, on June 12, 2014. Australia take on Chile in their first match in Cuiaba on June 13.
A worker walks in the stands at the Arena Pantanal in Cuiaba, Brazil.
General view of the Arena Pantanal stadium in Cuiaba, Brazil, where Chile will face Australia for a FIFA World Cup match on Friday.
Spain's Pedro (bottom) and Diego Costa jump during an official training session the day before the group B World Cup soccer match between Spain and the Netherlands at the Arena Ponte Nova in Salvador.
From left to right foreground: Robin van Persie, Jonathan de Guzman and Memphis Depay warm up during a training session the day before the group B World Cup soccer match between Spain and the Netherlands at the Arena Ponte Nova in Salvador, Brazil.
The Arena Ponte Nova in Salvador, Brazil where Netherlands will play against Spain on June 13.