It is never acceptable to cheat at a sport because of the very nature of sports. Sports are valuable for many reasons, including diversion, exercise, and the promotion of skills such as teamwork, and comradry. The entire point of sports is put to shame if there is cheating because the playing field is no longer level, and the competition is an illusion.
Cheating has tarnished the image of many great sports in recent years. Cheating is unacceptable, and threatens to make a mockery of many proud national traditions. It teaches the young that poor morality is acceptable, and it sets a bad example. Also, drug use is dangerous for athletes' health and well-being.