Usually, players are randomly selected by the league to get tested for drugs at a random time.
Athletes are tested for steroids and performance enhancers.
Because so many use drugs to enhance performance.
Urine, blood and hair are commonly tested for drugs.
There were no practical mass drug tests in 1970, and little or no testing of athletes.
Athletes have blood tests because they need to be tested for drugs.
because so they can se how healthy and for safety .
athletes are tested so they don't cheat for example certain drugs can make athletes stronger like barry bonds took a drug to make him stronger then he got a ton of home runs
It depends on the level of play. pro, collegiate, etc...
Athletes are tested for drugs, if caught you will be disqualified. If you won a medal then you were found out to be cheating then the medal would be taken off you. Prescription medicines can also contain banned substances so athletes have to be careful xx
Hundreds of Olympic athletes have tested positive for performance enhancing drugs.
Athletes are tested for Drugs to make sure they dont cheat. this is another one of harleys answers
athletes take drugs to boost their energy.but taking drugs even by an athlete in banned.