AKIPRESS.COM - Brazil has promised a roaring Rio Olympics party, but with 100 days to go before the sporting mega bash, the hosts are battling nightmarish political and economic gate crashers, says ABC.

Stunning scenery and traditional Brazilian warmth mean the 10,500 athletes from 206 countries and 450,000 tourists should have a spectacular time.

Officials say the stadiums are 98 percent ready and International Olympic Committee chief Thomas Bach has promised "an excellent Games."

But the first Olympics ever staged in South America, which kicks off exactly 100 days from Thursday morning AEST, is threatened by an almighty hangover before it even gets under way.

The revelation by officials Monday that 11 people have died on Olympic construction sites – compared to eight across all Brazil for the 2014 World Cup – cast a grim shadow.

Then there is the major turmoil on the political stage where President Dilma Rousseff faces impeachment.

Usually, Rousseff would be the one in Rio's Maracana stadium announcing the Games open on August 5. However, with impeachment proceedings – that she claims are a coup d'etat – about to start, Rousseff is likely to be replaced by her vice president, Michel Temer.

And the fact that Temer also faces possible impeachment illustrates how volatile Latin America's biggest country has become – a fact that could point to turmoil, including street protests, just when the international spotlight is on Brazil.

Throw in a tanking economy, high crime and the Zika virus and some start asking whether Brazilians will even want to turn up to Rio's $14 billion show.

When an ecstatic Rio won the hosting rights back in 2009, Brazil was a samba-dancing economic wonder.

Today the economy is in steep decline, with a second successive 3.8 percent contraction forecast this year. Unemployment has shot up to 10.2 percent and rating agencies have downgraded the country's credit status to junk.