Rusada was declared "non-compliant" with international sports anti-doping code in 2015.
Van Niekerk broke Michael Johnson's long-standing world record in Rio.
It"s no exaggeration to say Farah has overcome Kenyan and Ethiopian team tactics.
Bolt is in the swansong season of his glittering career.
The Riruta Central Secondary School student will team up with Matayo in the speciality.