Serena Williams criticises tennis’ anti-doping system ahead of her return to Wimbledon, describing the current testing requirements as “unprofessional” and “unreasonable.” Multiple outlets report that the criticism focuses on the sport’s Whereabouts rules, which require athletes in the testing pool to provide regular information about their location so anti-doping officers can conduct tests. Williams, 44, says the process has been “grueling,” particularly in the context of her comeback preparations and her responsibilities outside tennis. Several sources cite her need to balance training and public life with motherhood, including caring for two children, and a wider schedule that makes compliance difficult. Williams also indicated that the rules nearly deterred her from returning to professional tennis. She re-enters the testing pool before she formally announces her comeback and is due to play her first Wimbledon match since 2022. According to reports, she faces Maya Joint in her opening grass-court Grand Slam match, with the controversy centring on how the testing framework operates rather than any specific alleged rule violation by Williams.