This BBC World Service series has been tracking the lives of East Londoners living on a deprived housing estate, in the shadow of the 2012 Olympic Park for the past two years. The BBC's Nina Robinson reports.
Episode 8: Two Cities; Beijing and Rio - Part 2
In the latest instalment of Great Expectations, Nina Robinson reports from two Olympic cities - Beijing who were hosts in 2008, and Rio de Janeiro, who will host the Olympics in 2016.
In part two, as London hopes for a sporting legacy for young people, a favela in Rio takes advantage of a new sports complex which is changing the lives of young people who live there.
A Brazilian martial arts instructor who works on the estate in East London talks to a judo instructor in the favela about their shared experiences of young people, drugs and the police.
In China, the legacy is there for everyone to see - but are the transport, venues and sporting legacies still having an impact?
(Image: Skyline of Rio de Janeiro. Credit: AFP/Getty Images)