But in a statement quoted by the Folha de Sao Paulo, the Rio de Janeiro state government pointed out that this was a test event, using only 30% of the stadium's full capacity, and did not represent the full reopening.

BBC: 'Problems' as Maracana stadium reopens in Rio

Companhia de Saneamento Basico do Estado de Sao Paulo-SABESP shares are currently trading down about 7.4% on the day.

FORBES: SBS Crosses Critical Technical Indicator

Workers were still finishing building a stadium wall, and ticket offices, turnstiles and gates were not working, said another paper, the Folha de Sao Paulo.

BBC: 'Problems' as Maracana stadium reopens in Rio