Last Updated: November 20, 2012 4:25pm
Sebastian Coe: Warned of challenging times for Rio 2016 organisers.
Sebastian Coe believes Rio de Janeiro face a 'tough' challenge in the years ahead to get ready for the 2016 Olympic Games.
Lord Coe, who was responsible for staging the London Olympics, is in the Brazilian city to pass on experience and share ideas from the 2012 Games.
Speaking to Sky Sports News, Coe said : "Everything in an Olympic project is a challenge. No city is ever challenged in the way it's challenged when delivering the Games. Everything is at a critical point, whether it's your airports, whether it's public transport, whether it is the spectator experience."
Rio has suffered setbacks at some Olympic venues, with renovation delayed at the Maracana stadium, where the Opening and Closing ceremonies will be staged.
The two new sports for 2016 - rugby sevens and golf - are also still without a home, with construction of the golf course hampered by legal wrangles over property.
However, Lord Coe is confident Rio will stage a successful Olympics.
"I think they're doing really well. But it's tough," he said.
"I said to them the other day if it were that easy everybody would be doing it, they're not. The IOC entrusted them with the biggest sporting event in the world and I think they will deliver a fantastic Olympic Games."
"Everybody wants them to succeed."
Orla Chennaoui has been to meet Alan Oliveira, who shocked the world by beating Oscar Pistorius in the 200m final at London 2012.
Officials in Brazil are fighting a battle against time to defeat the country's drug lords and make it safe for travelling sports fans ahead of the 2014 World Cup and 2016 Olympic Games.
Lord Coe has told Sky Sports News that Brazil will host a fantastic Olympic Games in 2016. The London 2012 chief is in Rio de Janeiro to pass on his advice and experience.
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