The International Olympic Committee vice-president believes the preparations for Rio 2016 are the "worst I've ever seen," reports BBC Sport.
John Coates added the "situation on the ground is critical," resulting in unprecedented action from the IOC in placing experts in the local areas to ensure the Games go ahead as planned.
The Australian, who has been to Rio six times as part of the commission responsible for overseeing the preparations, revealed the IOC is more involved than it would normally be.
"The IOC has adopted a more hands on role, it is unprecedented for the IOC but there is no plan B. We are going to Rio," he said.
Coates has been involved with the Olympics but he still believes this is the worst situation, even worse than the 2004 Olympics in Athens. "It's the worst that I've experienced. We have become very concerned," he revealed.
"They are not ready in many, many ways. We have to make it happen and that is the IOC approach. You can't walk away from this."
With just 44-days to go until the start of the World Cup, also in Brazil, there have been many concerns over the preparations for that, too. But it seems the lessons from the build up to that, have not been learnt and the build-up is being marred further.
He added that construction had not even been started on some venues, while infrastructure is way behind schedule, despite the numbers of organisers being the same as it was in London at the same stage of the preparations for the 2012 Olympics.
With a little over two years to go until the start of the Games, will the country be ready to host the first Olympics in South America. There's still a long way to go.
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