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 described as “probably,

Top-ranked men's 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 Court of Arbitration for Sport said Friday that it has scheduled a closed-doors hearing April 16-17 at its headquarters in Lausanne.

Jannik Sinner's date in which he will take part in his Court of Arbitration for Sport (CAS) appeal surrounding his no fault or negligence verdict has been confirmed as his clay court season could hang in the balance.

World number one Jannik Sinner will face a hearing in April to determine whether he faces a ban as a result of two positive doping tests he submitted last year. The Court of Arbitration for Sport has announced it will hear an appeal by the World Anti-Doping Agency (WADA) against the decision not to ban Sinner on April 16 and 17.

Iga Swiatek, a self-described "control freak," is taking new precautions after a doping case she described as "probably, like, the worst time in my life." Jannik Sinner, meanwhile, acknowledged that his on his mind entering the season's first Grand Slam.

Jannik Sinner and Iga Swiatek were both able to go for months last season without anyone knowing what was happening behind the scenes and that they'd failed doping tests.