After winning the 100-meter trials in grand fashion in Eugene, Oregon, Sha’ Carri Richardson will not be able to participate in the event at the Tokyo Olympics after she tested positive for marijuana, CBS Sports reported . Richardson failed the drug test after her victory in the women's 100m at the U.S. Olympic track and field trials, a source told NBC. On Thursday, Richardson tweeted, "I am human." I am human — Sha’Carri Richardson (@itskerrii) July 1, 2021