World anti-drugs boss Dick Pound has warned coaches they will also be punished if their athletes are found guilty of doping.
Pound hopes the Olympics will be clean
Pound, the head of the World Anti-Doping Agency, insisted that athletes' entourages must take responsibility alongside their charges for any illegal substances found in their systems.
The Canadian was speaking in the wake of the storm unleashed by the discovery of the newly-detectable steroid tetrahydrogestrinone THG.
And he issued a stern message to drug cheats in sport, saying that his organisation would continue to hunt them down.
"This has been an important breakthrough," Pound told BBC Radio Five Live.
"It's disappointing to see the extent of possible usage of all of this but it's another avenue that's just been blocked off.
"In my view, especially where you're dealing with young people, the coaches, the doctors and the rest of the entourage are probably more guilty than the athletes because they should know better and they betray the trust confided to them.
"There is no coach worthy of the description that cannot be unaware of whether an athlete under their charge is using drugs."