I forget what fight it was i was watching, i believe it was bertos last fight where conte said Berto was low in some things etc etc and he had him on a good diet......i couldn't stop laughing, especially how much more muscular berto looked....i say most guys are juicing, shit look at evander holyfield getting roids shipped to "evan fields" ..comical really....pacqiou is easy to accuse as well because his coach is on steroids for his health, amongst many others....shanes decline, jones decline, can be attributed to lack of steroid use..truth is....we have no fucking idea...mayweather could be the biggest jucier of them all ...but we wont know