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, the world's top-ranked tennis player, 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 will go into his Australian Open title defence knowing a court hearing in Switzerland in April could condemn him to a potential two-year ban from the sport for doping. The Court of Arbitration for Sport (CAS),