FIFA and local organizers have postponed the final test event at the troubled World Cup stadium in Sao Paulo, raising fresh uncertainty about Brazil's readiness to stage the tournament opener in the city.

Following concerns from local authorities, FIFA said Wednesday that a test match scheduled for May 29, a Thursday, has been moved to the following Sunday to avoid disrupting the city's "operational routine" on a working day.

Soccer's governing body said it also decided to stage the game on a weekend to "ensure it attracts more than 50,000" fans needed to properly test the venue.

What this means

Fresh concerns seem to pop up daily when it comes to the stadium issues in Brazil, but it would take a major disaster to change the venue of the World Cup opener. FIFA will do everything in its power to make sure the tournament goes off without a hitch. 

With files from The Associated Press