contract with st. louis. then, just reaction from the baseball world itself. chipper jones went on twitter talking about boesch and what a scum he was. other baseball players came out and said, they are mad that johnny peralta is playing again. there are all these different things happening in the world of baseball and none of it is going to work when it comes to cleaning up the sport. >> reporter: it is tough. because you have someone in tony bosch who is not exactly an upstanding citizen. major league baseball, the way they categorized it, is we don't need to consider his personal credibility. what's at issue is the physical evidence he can give us. whether you think this guy is scummy, whether you think he is generally a liar or not, doesn't really matter. if he has physical evidence, that's what we are going to go by. that's what he provided to major league baseball. it wasn't just alex rodriguez. we have to remember. this isn't just a he said, he said. there were 13 other players involved with biogenesis.