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 .
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 . Potter : At Olympia , athletes had to dedicate a monument recording their cheating .