IOC denies Richardson’s accusations of double standards over Valieva

• US sprinter missed Olympics after positive cannabis test
• IOC: There is nothing in common between these two cases'

The International Olympic Committee has dismissed claims that a double standard was applied to US sprinter Sha'Carri Richardson compared to Russian skater Kamila Valieva after both tested positive for a banned drug.

Richardson missed last year's summer Games in Tokyo after receiving a 30-day ban for smoking cannabis, a drug few believe is performance enhancing, saying she had done so to relieve the pain she felt over the recent death of her mother.