President of International Olympic Committee Jacques Rogge, President of Rio 2016 Bids Carlos Nuzman and Mayor of Rio de Janeiro Eduardo Paes (L-R) prepare to sign the host city contract after Rio de Janiero was announced as the host city for the 2016 Olympic games in Copenhagen, capital of Danmark, Oct. 2, 2009. (Xinhua/Wu Wei)

Brazilian President Luiz Inacio Lula da Silva (R) shows the plate awarded by President of the International Olympic Committee Jacques Rogge (L) during a new conference after Rio de Janiero was announced as the host city for the 2016 Olympic games in Copenhagen, capital of Danmark, Oct. 2, 2009. (Xinhua/Wu Wei)

Reisdents celebrate after Rio de Janeiro won the bid to host the 2016 Summer Olympic Games, on Copacabana beach in Rio de Janeiro, Brazil, Oct. 2, 2009. Rio de Janeiro of Brazil was chosen here on Friday by the International Olympic Committee (IOC) as the host city of the 2016 Summer Olympic Games. (Xinhua/Song Weiwei)

Reisdents celebrate after Rio de Janeiro won the bid to host the 2016 Summer Olympic Games, on Copacabana beach in Rio de Janeiro, Brazil, Oct. 2, 2009. (Xinhua/Song Weiwei)

Brazilian President Luiz Inacio Lula da Silva (3rd R) celebrates during a new conference after Rio de Janiero was announced as the host city for the 2016 Olympic games in Copenhagen, capital of Danmark, Oct. 2, 2009. (Xinhua/Wu Wei)