The Positive Test
Mudryk tested positive for meldonium, a cardiovascular medication that enhances respiratory capacity and stamina, during a routine urine test conducted in October 2024 while he was on duty with the Ukraine national team. The FA's anti-doping regulations operate under strict liability, meaning intent or knowledge is irrelevant—a prohibited substance found in an athlete's body constitutes a violation regardless of circumstances.
Timeline of Events
The adverse finding emerged in December 2024, triggering an immediate provisional suspension from Chelsea. Mudryk was formally charged by the FA in June 2025 with breaching anti-doping rules. He has not played competitive football since November 2024. On April 29, 2026, the FA handed down the maximum four-year ban. Mudryk filed an appeal to the Court of Arbitration for Sport on February 25, 2026, before the ban was publicly announced.
Meldonium: The Substance
Meldonium is an anti-ischemia medication prescribed clinically for heart conditions such as low blood flow and angina. For athletes, it assists with endurance and recovery from exercise. It is not FDA-approved in the United States and is only prescribed in parts of Eastern Europe. WADA added it to the banned list in January 2016, making it prohibited at all times both in and out of competition.
Mudryk's Response
Mudryk maintains his innocence and has stated he has never knowingly used any banned substances or broken any rules. He is represented by Morgan Sports Law, the same firm that represented Paul Pogba during his doping case. While awaiting resolution, Mudryk has been training individually at non-league club Uxbridge FC with a private coach to stay fit. He hopes to return to football in 2026.
The Appeal Process
Mudryk's appeal to the Court of Arbitration for Sport was filed February 25, 2026. The parties are currently exchanging written submissions, and a hearing has yet to be scheduled. Any sanction is expected to include the 16 months Mudryk has already spent sidelined. The precedent of Paul Pogba's successful appeal, which reduced his initial four-year ban to 18 months after CAS accepted his argument of unintentional ingestion, offers a potential model for Mudryk's case. 
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