Two-time Grand Slam champion Simona Halep has been charged with a second doping offense. The charge relates to ‘irregularities in her athlete biological passport’. Halep has been provisionally suspended since October last year having tested positive for banned substance roxadustat at the US Open. Roxadustat stimulates production of hemoglobin and red blood cells. The two charges which … Continuă lectura Two-time Grand Slam champion Simona Halep  charged with a second doping offense over ‘irregularities in her athlete biological passport’