Sha’Carri Richardson, a track sensation, tests positive for marijuana

Sha’Carri Richardson celebrates after winning the women’s 100-meter run at the U.S. Olympic Track and Field Trials Saturday, June 19, 2021, in Eugene, Ore. (AP Photo/Chris Carlson)

The American sprinter Sha’Carri Richardson, who was set for a star turn at the Tokyo Olympics this month, tested positive for marijuana at the U.S. track and field Olympic trials, according to two people with knowledge of the test results who requested anonymity because they were not authorized to discuss the situation.