At one time it was a no no to have any sort of drugs in their system, when the coach and the team notice then, they will blame that person for loosing the game, so they change the policy so that they can have a doctor prescription in order to play with drugs, so this is how the player got the idea of being able to use drugs for sports when they were tested and can't play if it wasn't prescribe by doctor. Once hooked on drugs, then they will find excuses to keep on going with drugs.
Now they are trying to figure out how to keep players playing without being hooked on drugs. I can not speak about other countries, if they accept everyone using drugs, then it back to square one like when they were not on drugs, everyone will be competing with drugs so it is just like it was, so will they find another way to get stronger drugs to help them?
The question is, will the drugs help them to keep in shape, no injuries?