When I saw the Mitchell Report I was surprised that there were some names that were not listed. There have been quite a few players that I thought they may have used steroids in their careers. Some of the players include: Tony Batista (spelling former A's player), Ron Gant, Brett Boone. Adrian Beltre, Ruben Sierra, Felix Jose, Brady Anderson and Luis Gonzalez.
I know don't have any proof, but all you have to do is look at their stats and wonder.