17 May 2012 Last updated at 07:45

Olympics: George Foreman on finding salvation at Mexico 1968

George Foreman was only 19 when he took his first steps to stardom with victory in the heavyweight final at the 1968 Mexico Olympics.

Two years previously, the young Foreman was involved in crime and his life was in a rut.

Here he tells BBC Sport's Saj Chowdhury how he escaped poverty forever following one momentous night in Mexico.