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 said he was happy with his reception from the Australian Open crowd on Monday as he launched his title defence with a comfortable win over Nicolas Jarry while still embroiled in a doping case.

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.

Jannik Sinner, ranked world number one, faces uncertainty over a doping controversy as he prepares for the Australian Open. Despite being cleared for unintentional contamination, the World Anti-Doping Agency has appealed,

World number one Jannik Sinner, who avoided suspension after failing two drug tests last March, was given a good battle on a sun-drenched Rod Laver Arena by the big-serving Chilean who was banned for 11 months in 2020 for doping.

Iga Swiatek, a self-described “control freak,” is taking new precautions — including holding on to extra samples of medicine she takes, in case they need to be tested at some point — after a doping case she describes as probably the worst time in her life.

World number one Jannik Sinner opened his Australian Open title defence in blazing sunshine with a win over Nicolas Jarry on Rod Laver Arena on Monday that brought the scourge of doping in the sport back into focus.