U.S. sprinter Sha’Carri Richardson tests positive for marijuana, will miss Olympic 100m

The winner of the U.S. Olympic Trials 100m is serving a 30-day suspension after testing positive for THC

Shelby Houlihan will not compete at Trials after all

The U.S. Olympic and Paralympic Committee reversed the decision made by the USATF to allow the American record-holder to compete at Trials