Former world number one tennis player Romania's Simona Halep (R) arrives at the Court of Arbitration for Sport in Lausanne on February 7, 2024, for her appeal against a four-year doping ban. The two-time Grand Slam singles champion tested positive for roxadustat after the US Open in 2022 and was charged with a separate second anti-doping breach last year relating to irregularities in her athlete biological passport.,Image: 844192071, License: Rights-managed, Restrictions: , Model Release: no, Credit line: Fabrice COFFRINI / AFP / Profimedia