Novak Djokovic believes that “favoritism” is damaging tennis’ anti-doping system as several players speak out in light of Jannik Sinner’s three-month ban.

Novak Djokovic says a majority of tennis players have lost faith in the anti-doping authorities following Jannik Sinner's three-month ban, and there's a widespread feeling that “favoritism” is being shown to the sport's biggest stars.