Caster Semenya has advanced to the finals of the 800 meters in her Olympic debut.
The South African was forced three years ago to undergo gender tests. The process sidelined her for almost a year while track and field's governing body decided whether to allow her to compete.
"I'm very happy to get through to the finals," she says. "It was very hard, but I tried my best. I just have to go to my bed."
Semenya carried South Africa's flag at the opening ceremony in London and is a leading medal contender in the 800.
— Jenna Fryer — Twitter http://twitter.com/jennafryer
EDITOR'S NOTE — "Eyes on London" shows you the Olympics through the eyes of Associated Press journalists across the 2012 Olympic city and around the world. Follow them on Twitter where available with the handles listed after each item.