The fastest man on Earth. It's a title that every 100 meter sprinter hopes to hold at some point in their career. It's a label many track and field athletes train night in and night out for. Sometimes, though, you have competitors like Canadian sprinter Ben Johnson who was stripped of his gold medal in the 1988 Summer Olympics, as well as his new world record of 9.79 seconds, after he tested positive for a banned substance called stanozolol.

Tonight at 8, ESPN will air 9.79*, a documentary on Johnson and the doping scandal that followed. In anticipation of the newest 30 for 30 film series doc, we take a look at those athletes, confirmed and alleged, who tarnished the record books with the help of a banned substance. From Barry Bonds and his tainted career home run mark to the rumored doping past of Lance Armstrong that led to seven consecutive Tour de France titles, here are The Biggest (Alleged and Confirmed) Steroid-Fueled Broken Records in Sports History.

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