REUTERS/Paulo Whitaker
The builders say they have not been given the $200 million government loan they were promised, and threatened to stop work on the stadium if it isn't paid.
The Itaquerao is supposed to host the first game of the event on June 12, 2014.
The run-up to the World Cup has been marred by reports that construction and infrastructure problems will throw the event into disarray.
As you can see from these stunning photos, there is still a ton of work to be done.