Sprinter Sha'Carri Richardson believes there is a double standard in Kamila Valieva drug test case | CBS Sports Headlines Sprinter Sha'Carri Richardson believes there is a double standard in Kamila Valieva drug test case Richardson was barred from competing in the Summer Olympics due to a positive test for cannabis … Continue reading Sprinter Sha'Carri Richardson believes there is a double standard in Kamila Valieva drug test case