The 1986 Orioles
were a model for what all the players in Major League Baseball (& all other sports) should aspire to. They voluntarily started a drugs testing procedure.
Players like Mike Boddicker, Scott McGregor and [Cal] Ripken point to numerous reasons for having elected to participate: embarrassment at baseball's string of drug scandals in the 80's; commitment to a close relationship with Baltimore fans; demonstration of the code of a collection of relatively moral young men; desire to set a good example for minor leaguers; and concern over the prevalence of amphetamines.