Major League Baseball commissioner Bud Selig again defended his role in the game's steroid scandal on Friday, pointing blame at the players' union and the media. "What I could do unilaterally, I did almost immediately," Selig said, mentioning a minor league testing program started in 2001. "The players' association was fighting us at every turn. There's no question about it," he added. He bragged about the fact that MLB banned amphetamines. "All I could do at the end of the last decade and the beginning of this century is to clean the sport up. And so I've done that," Selig said.