Athletics: Nyairera in support of Semenya

Burundi's Francine Niyonsaba, left, is congratulated by Kenya's Margaret Nyairera Wambui after their Women's 800 meters semifinal at the World Athletics Championships in London. (Courtesy)

Kenya’s 800m bronze medalist at the 2016 Rio Olympics, Margaret Wambui Nyairera, has tweeted in support of Caster Semenya.

The South African runner on Wednesday lost her court challenge against IAAF rules forcing some female athletes to regulate their testosterone levels.