Top-ranked tennis player Jannik Sinner will go to sport’s highest court in April for the World Anti-Doping Agency’s appeal that seeks to ban him from the sport for at least one year.

The men's world No. 1 could face a two-year ban. Here's what to know about the doping proceedings against him so far

World number one Jannik Sinner's doping hearing will start on April 16, the Court of Arbitration for Sport (CAS) said on Friday. Italian Sinner failed two drug tests in March for low levels of the anabolic androgenic steroid clostebol but was cleared by an independent tribunal in August after it accepted his explanation of unintentional contamination.