In just one week, the eyes of the world will be on Rio de Janeiro as the Olympic Games arrive in South America for the first time.
The build up to Rio 2016 has been beset by political, economic and health crises, while doping has cast a shadow over sport and track and field in particular.
On August 5, organizers will hope to put all those various problems behind them when athletes from across the world march into the Maracana Stadium for the Opening Ceremony and the lighting of the Olympic cauldron.