The US sprinter Sha’Carri Richardson has questioned why the Russian figure skater Kamila Valieva has been allowed to compete at the Olympics while she was banned for a similar offence.
On Monday, the court of arbitration for sport (Cas) ruled 15-year-old Valieva could continue to compete at the Winter Olympics in Beijing despite registering a positive doping test in December. Richardson missed last summer’s Olympics after testing positive for cannabis. Few people regard the drug as performance-enhancing and Richardson said she had smoked to relieve the pain she felt over the recent death of her mother.
