Semenya fails to reach Olympic 800m qualifying time on comeback
22:07 GMT, 24 March 2012
Former world 800m world champion
Caster Semenya, 21, failed to reach the Olympic qualifying time on her
return to action after injury in Potchefstroom on Saturday.
The South African was forced to undergo gender testing after winning her world title in 2009.
Slow progress: Semenya ran a sluggish 800m at McArther Park in Potchefstroom, South Africa