Sha'Carri Richardson suspended for one month after testing positive for marijuana, could miss Tokyo Olympics. Richardson will not compete in the women's 100-meter dash, her signature event. It appears that Richardson could still be selected as a member of the women's 4x100 relay team, because that event will take place after her suspension is over. Source 3k.
Sha'Carri Richardson will miss Tokyo Olympics after last month's positive marijuana test. The American sprinter was not selected for the 4x100-meter relay team after receiving a month-long ban for her failed drug test. Ref. USAToday.