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), sport's highest tribunal, announced on Friday it had set a date for a behind-closed-doors hearing on April 16-17 at its headquarters in Lausanne over the world No.1's two positive doping tests from last year.
