Nine athletes tested positive for doping and banned from the 2012 Olympics . David Potter : For as long as there have been games , there have been stories of cheating . While there were no ancient rules against performance enhancement -- our chief concern today -- there is lot of evidence for both the theory and practice of getting people to do less than their best . He says cheating methods in ancient times included bribery and dirty tricks . Hide Caption 1 of 11 Photos:Photos: Olympic scandals through history At Olympia , athletes had to dedicate a monument recording their cheating .
Nine athletes tested positive for doping and banned from the 2012 Olympics . David Potter : For as long as there have been games , there have been stories of cheating . He says cheating methods in ancient times included bribery and dirty tricks . Hide Caption 1 of 11 Photos:Photos: Olympic scandals through history At Olympia , athletes had to dedicate a monument recording their cheating .