Romania's former world No. 1 Simona Halep said on Tuesday that she would appeal to sport's highest court against an International Tennis Integrity Agency (ITIA) decision to ban her for four years after two separate anti-doping rule violations.

The 31-year-old former Wimbledon and French Open champion had been provisionally suspended since October 2022 after testing positive for banned blood-booster roxadustat at the U.S. Open last year, where she lost in the first round.

Halep said she "refused to accept their (ITIA) decision of a four-year ban," which runs until Oct. 6, 2026.