The International Association of Athletics Federation (IAAF) Disciplinary Tribunal has banned Olympic and three-time World 1,500 metres world champion Asbel Kiprop for four years.
Kiprop had been suspended in May last year by IAAF’s Athletes Integrity Unit (AIU) after testing positive for Erythroprotein (EPO), a blood-boosting substance which increases the production of red blood cells, encouraging more oxygen flow in the body.