According to the investigation carried out by former Democratic senator George Mitchell, professional baseball players of the MLB have been widely using doping for the past 10 years. According to the research, whose results were included in the Mitchell’s report, in 30 clubs there was a real “culture” of consumption of steroids and growth hormones. This is a real scandal in the MLB world, which will have certain consequences for the Major League. Now, leading sporting authorities guarantee that there is going to be no tolerance to performance-enhancing drugs anymore.