According to Rio mayor Eduardo Paes, faulty construction is the likely cause of the accident.

FORBES: Three Buildings Collapse In Rio de Janeiro

In a TV interview, Mayor Eduardo Paes said he closed the Joao Havelange stadium on Tuesday because of a risk of the roof collapsing.

BBC: Rio Olympics 2016 stadium 'will not be demolished'

Brazilian President Dilma Rousseff and Rio de Janeiro's Mayor Eduardo Paes were among the 30, 000-strong crowd watching the friendly between teams captained by Ronaldo and Bebeto.

BBC: 'Problems' as Maracana stadium reopens in Rio

He was joined by the Brazilian city's mayor, Eduardo Paes, along with former Secretary of State Hillary Rodham Clinton at the start of a session discussing climate change and how cities can deal with it.

WSJ: Clinton announces Latin America initiative

Just like Eduardo Paes wants to capitalize with the Olympics games to leave a legacy and revolutionize Rio de Janeiro, I believe the Pacified Rio Cup has the potential to leave long lasting improvements in the communities.

FORBES: Move up http://i.forbesimg.com t Move down

The panel will include Ms. Gretchen Kalonji, Assistant Director-General for Natural Sciences, and Eduardo da Costa Paes, mayor of Rio (Brazil).

UNESCO: EDUCATION