Serena Williams is set to return to Wimbledon on Tuesday (June 30, 2026) to face Maya Joint, her first match at the grass-court Grand Slam since 2022. She returned to the sport this month in a doubles match at the Queen’s Club grass-court tournament. However, the 23-time Grand Slam champion has criticised the sport’s anti-doping Whereabouts rules, calling it “unprofessional” and “unreasonable.”
Many high-profile players have articulated the significant psychological burden that these regulations impose. This intense paranoia follows a string of high-profile doping controversies, including Iga Świątek’s one-month suspension and Jannik Sinner’s recent three-month ban for accidental contamination.
Let’s examine the anti-doping rules and the recent Whereabouts controversy causing widespread debate across professional tennis.
What is the World Anti-Doping Code?
The World Anti-Doping Code (Code), first published by the World Anti-Doping Agency (WADA) in 2003, serves as the fundamental framework that aligns anti-doping policies, rules, and regulations across sports organisations and public authorities globally. It operates alongside eight International Standards that promote uniformity among anti-doping organisations across different domains.
These eight International Standards are:
- The International Standard for Testing and Investigations (ISTI)
- The International Standard for Laboratories (ISL)
- The International Standard for Therapeutic Use Exemptions (ISTUE)
- The International Standard for the Prohibited List (The List)
- The International Standard for the Protection of Privacy and Personal Information (ISPPPI)
- The International Standard for Code Compliance by Signatories (ISCCS)
- The International Standard for Education (ISE)
- The International Standard for Results Management (ISRM)
What’s the purpose of WADC?
WADC safeguards athletes’ essential right to engage in doping-free sports, thereby fostering health, fairness, and equality for athletes globally, and establishes unified, coordinated, and effective anti-doping initiatives at both international and national levels aimed at preventing doping.
WADA periodically updates its list of Prohibited Substances and Methods. This includes steroids, anabolic agents, stimulants, and gene doping. Some components, such as narcotics, are permanently banned. Some, like alcohol, are banned only in-competition.
Also read: The dope on doping in sports
The Code establishes an International Standard for Testing and Investigations, detailing comprehensive procedures for notifying athletes, collecting samples, conducting tests, and investigating potential violations of these regulations. It defines ten anti-doping rule violations (ADRVs), and any breach of one or more of these rules triggers an investigation.
1. Presence of a prohibited substance in an athlete’s sample
2. Use or attempted use of a prohibited substance or method
3. Refusing to submit to sample collection after being notified
4. Failure to file athlete whereabouts information & missed tests
5. Tampering with any part of the doping control process
6. Possession of a prohibited substance or method
7. Trafficking a prohibited substance or method
8. Administering or attempting to administer a prohibited substance or method to an athlete
9. Complicity in an ADRV
10. Prohibited association with sanctioned Athlete Support Personnel
According to WADA, penalties for breaching anti-doping regulations can vary from a warning to a lifetime ban.
What’s the Tennis whereabouts rules controversy?
Under the strict WADA code, elite athletes must log their exact location for a specific hour every single day. Failing to update this data or missing three testing windows within 12 months triggers an automatic doping violation. The International Tennis Integrity Agency (ITIA) requires players to provide their daily “whereabouts” for no-notice testing. Serena Williams described it as “unreasonable.”
“It’s gruelling. They changed the rules now. I didn’t know some of the rules. So apparently if you miss a test outside of your window, it still counts as missed. I’m like, I guess I can’t go pick up my kids,” said 44-year-old Williams, the seven-time Wimbledon champion, a mother of two. “It’s unprofessional. I hate it. I think it’s necessary, but I think a lot of the stuff, if I want to go places outside of my window, I should be able to go without having it count as a missed test.”
The ITIA, in response to Williams’ comments, told The Associated Press the rules have been the same for several years.
“If a tester is unable to reach a player during their allocated hour, then it may well be a ‘strike,’ and three failures could lead to a charge. If a tester is unable to reach a player outside of their allocated hour, it is not considered a strike,” it said of the whereabouts rules.
Under anti-doping rules, athletes can be penalised without a positive test if they have three “whereabouts failures” within 12 months.
(With inputs from AP)
Published – June 29, 2026 12:32 pm IST
