By Mitch Phillips LONDON (Reuters) – Jemima Sumgong, who last year became the first Kenyan woman to win Olympic gold in the marathon, has tested positive for the banned blood-booster EPO in an out-of-competition test carried out by the IAAF, the sport’s governing body said on Thursday. “The IAAF can … Continue reading Exclusive – Rio Olympic marathon champion Sumgong fails drugs test: IAAF