This archive report was first published on 25 September 2019.
Kenyan Olympic bronze medalist Margaret Nyairera Wambui has spoken out against the International Association of Athletics' (IAAF) testosterone regulations, which she claims have ended her career.
According to the IAAF, athletes with differences in sexual development will have to keep their testosterone levels under 5 nanomoles per liter to compete in female events.
The rule, which was upheld by the Court of Arbitration for Sport, will impact athletes in events from 400 meters to the mile.
Nyairera, 24, has not competed since May's Diamond League meet in Doha, where she ran 2:00.61 and finished sixth overall.
She has stated that she does not plan on taking any testosterone suppressing drugs, which would be required to meet the new regulations.
Nyairera's case is not an isolated one, as all three women's 800-meter medalists from the 2016 Olympics were affected by the new rules.
Gold medalist Caster Semenya of South Africa has been at the forefront of the fight against the IAAF, but lost her appeal despite the Swiss Federal Supreme Court briefly suspending the ruling.
As a result, Semenya will not be able to defend her gold medal at the world championships and potentially the 2020 Olympics.
Other athletes, including Francine Niyonsaba of Burundi, have also been affected by the new regulations.
Nyairera's comments come as the IAAF prepares to implement the new rule at the upcoming world championships in Doha, Qatar.
