No 1: Caster Semenya celebrates as she wins gold in Berlin Photo: AP
Semenya crowned a spectacular season by triumphing in 1min 55.45sec while Britain's Jenny Meadows produced a lifetime best of 1min 57.93sec to take the bronze - Britain's third medal of the championship. Fellow Briton Marilyn Okoro was eighth.
But instead of being able to celebrate her victory, Semenya found herself facing uncomfortable questions about whether she should really have been lining up in today's first-round heats of the men's 800m.
