Controversy has erupted around 18-year-old South African runner Caster Semenya. She must undergo gender testing to prove she is a woman after rumors swirled following her amazing performance at the World Championships in Berlin.
However, there’s no shortage of strange gender-bending cases from Olympic history. Here’s the top ten, including Stella Walsh, the former fastest woman in the world (killed in an armed robbery at a Cleveland shopping mall and found to have male genitals) and Dora Ratjen, a German high jumper who competed at the 1936 Olympics for Hitler (and who was revealed to be a man after being spotted at a train station with a five o’clock shadow).