Why is marijuana prohibited in sports?

After U.S. sprinter Sha’Carri Richardson was suspended for marijuana use, many are asking why the drug is banned in the first place

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

Study says 1 in 4 athletes used cannabis within the past year

The drug is prohibited in competition, but it appears some athletes are still celebrating 4/20