SAO PAULO, BRAZIL - APRIL 29:  Construction work continues at the Itaquerao stadium, also known as Arena de Sao Paulo and Arena Corinthians, on April 29, 2014 in Sao Paulo, Brazil. The stadium is scheduled to host the opening World Cup match on June 12 between Brazil and Croatia. Some 20,000 temporary seats are being constructed behind the goals to boost the seating capacity to nearly 70,000.  (Photo by Mario Tama/Getty Images)