jannik sinner's recent doping case has sparked significant changes in anti-doping regulations, leading to a three-month ban and raising questions about fairness and favoritism in the sport.

Men's tennis world No. 1 who received a three-month ban for anti-doping rule violations.

World Anti-doping Agency that imposed a ban on Sinner.

Five-time women's champion who was banned for a month due to a contaminated substance.

The court where wada appealed Sinner's case.

tennis player who replaced Sinner in an exhibition event.