International Baseball, that is. Three players have been banned from international competitions for periods ranging from three months to two years.
Keeping in mind the theme of competition between leagues advanced below, suppose that the Olympics, Basketball, and Football all manage to drive drugs out of their sport, while MLB continues to sit on its lonely island where testing is irrelevant. That is where we are currently headed. When owners and players feel the monetary sting of fans turning away from the "juiced up" game, perhaps they'll wake up and take action.