Mark Kerr Opens Up About His PED Use During His MMA Career

Former PRIDE star and two-time UFC tournament champion Mark Kerr recently opened up about his heavy PED use during his active fighting career.In a new clip released by MMA documentary filmmaker Bobby Razak, which you can watch above, the star of the infamous "Smashing Machine" documentary revealed that he was taking a lot of performance-enhancing drugs throughout his MMA career."Up to the age of 27, I didn't touch any PED's at all. I went through all my Olympics, all my NCAA stuff taking no chem