The Sao Paulo stadium which hosts the opening match of the World Cup will not be finished until less than four weeks before Brazil plays Croatia on June 12.
Confirming further delays on Saturday, FIFA secretary general Jerome Valcke says the venue will not be ready "before the 15th of May."
"We are 104 days before the first game in Brazil, in Sao Paulo, in a stadium which is not ready," Valcke told reporters.
FIFA had hoped to get the Itaquerao stadium in mid-April, following delays when a crane collapsed in November killing two workers.
Referring to host cities Sao Paulo and Curitiba, Valcke said two of the 12 World Cup stadiums were "quite late."