Richards-Ross on mystery illness
- From the section Olympics
American sprinter Sanya Richards-Ross is hopeful she finally has a proper diagnosis of an illness she has been suffering from since 2007.
Richards-Ross was initially diagnosed with Behcet's Disease but says she now believes that was incorrect.
The 27-year-old Jamaican-born 400m star also discusses her rivalry with Britain's Olympic champion Christine Ohuruogu, and the success of Jamaica's sprinters.