Tag: Doping

World No. 1 Jannik Sinner almost quit tennis due to doping controversy

Kibiwott Kandie, former world half-marathon record-holder, suspended for doping

Jannik Sinner's 3-month doping ban becomes a blessing in disguise, trainer reveals future plans

Marathoner Brimin Kipkorir of Kenya has been suspended for doping

Jannik Sinner pushed past doping issues and conquered tennis