No longer running for his life

Marathoner endured refugee camps, fled forced servitude in order to realize his Olympic dream

South Sudanese Olympian Guor Marial may not be a medal threat in Sunday's marathon, but the former slave's road to Rio is one of the most astonishing stories of these Games.

As a teenager Marial was forced to run for his life during Sudan's long civil war, in which he lost 28 members of his family, was kidnapped twice and ended up in forced servitude.