U.S. Open champion Jannik Sinner has introduced a new fitness coach and physiotherapist to his team after firing his previous staff members because of a doping case.

Time is running out for appeals to be filed in the case that exonerated U.S. Open champion Jannik Sinner from doping

Jannik Sinner has hired two of Novak Djokovic’s former coaches as the World No.1 shakes up his backroom team following his doping scandal. Sinner stormed to his second Grand Slam triumph at the US Open earlier this month but it was a drama-filled fortnight for the Italian who escaped a doping ban on the eve of the tournament.

Doping Agency has yet to decide whether to appeal the decision to exonerate U.S. Open champion Jannik Sinner of blame for his positive steroid tests, and has another three weeks to do so.