For all of my life I'd been extremely healthy. I'd never had any health issues, so to go from being perfectly healthy to having this very rare disease was scary. In a lot of people it is very severe. Some people go blind, you can have neuro-lesions which affect your brain, so I was very nervous.

Quote by Sanya Richards-Ross

58. She broke Valerie Brisco-Hooks' US record of 48. 21) the win in Stockholm improved her career total of sub-50 second races to an unchallenged 46.

She won the individual bronze medal at the 2008 Olympics for the 400m. She won the gold medal in the 400m at the 2012 Olympics.