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 the majority of tennis players have lost faith in tennis’ doping agencies after Jannik Sinner accepted a three-month ban, and that there are widespread feelings of “favoritism” for the sport’s biggest stars.

After Jannik Sinner’s three-month ban went public, Novak Djokovic and other top players criticized the decision. However, the Italian’s lawyer says there is no favoritism toward the World No. 1.