Women's Tennis Blog · Jan 23
Croatian player fails doping test, positive for three prohibited substances
Nike Melbourne 2026The International Tennis Integrity Agency (ITIA) today revealed that Croatian tennis player Jana Fett has been provisionally suspended under the Tennis Anti-Doping Programme (TADP), as three banned substances have been found in her sample taken in November 2025.
Jana FettThe case originates from an in-competition drug test conducted on November 16, 2025 during the Billie Jean King Cup play-offs in Varazdin, where Fett was representing Croatia on home soil. Three prohibited substances were detected in her sample: SARM Ostarine (S-22), a metabolite of LGD-4033, and metabolites of GW501516. Her mandatory provisional suspension has been in effect since December 22, 2025.