Caster Semenya is a favorite for gold in Rio, and not without controversy.
The powerful South African runner won silver in the women’s 800 meters in London, and her body type and times have found plenty of critics, drug tests and even gender tests.
The success of Semenya, 25, has led to intense discussions on gender, testosterone, and other biological issues in competition, with advocates and detractors.
One of those advocates is a former Olympian and professor. Here’s his take from a fascinating article from the Associated Press:
Former Olympic runner Bruce Kidd, a professor of physical education and an adviser to Chand, opposes the testosterone-limiting rule.