The Mitchell Report also stated that interviews were requested of five MLB players who had spoken out publicly on the steroid issue. Of these players, only one, Frank Thomas , was willing to be interviewed. The Mitchell Report stated that there was no evidence that any of these five had used performance-enhancing drugs. Curt Schilling , one of the four players who declined to interview with Mitchell, explained that he denied Mitchell's request because he "would have nothing to offer" Mitchell's investigation "other than personal opinion and hypotheticals." 
The Biogenesis scandal would have never become news if Porter Fischer, a former employee of the clinic (which closed in late 2012), had not turned over boxes of documents to the Miami New Times in 2013. While the handwritten records did not definitively connect baseball players to drug use—athletes were often referred to by nicknames—MLB took the allegations seriously and purchased the records. The league then sued founder Tony Bosch and eventually reached a deal with him to cooperate with its investigation. According to whistleblower Fischer, the number of athletes linked to Biogenesis extends far beyond what has been reported. "In just the four years that I know, it's got to be well over a hundred, easy," he told ESPN's Outside the Lines. "It's almost scary to think about how many people have gone through [Bosch's clinic] and how long he's gotten away with this." Fischer told ESPN that athletes from the NBA, boxing, tennis, and MMA had also received drugs from Biogenesis. So far, only baseball has investigated those claims.