Twice Olympic 800 metres champion Caster Semenya of South Africa has said she planning to run for the presidency of the ruling body World Athletics when Sebastian Coe’s final term ends in 2027. “I am working on my candidature for the presidency. I like to challenge people who don’t look after athletes’ rights,” Semenya told German broadcasters ARD. Semenya, 33, won two Olympic golds and three world titles in the 800m she dominated for many years. At the same time, she was engulfed in a gender controversy which became public the day of her first world title in 2009. She is considered intersex a…