Legendary US Olympian Carl Lewis has cast doubt over Usain Bolt's world-record breaking exploits at the Beijing Olympics, claiming questions need to be asked about the Jamaican's rapid rise through the sprinting ranks.
Bolt won three gold medals at the Games, setting records in the 100 and 200 metres sprints, and was also part of the world-record breaking Jamaican team that took out the 4 by 100 relay, but Lewis remains unconvinced Bolt is the real deal.
Lewis' main concern with the Jamaican sensation is the fact his native Jamaica doesn't enforce random drug tests.
"When people ask me about Bolt I say he could be the greatest athlete of all time," the nine-time gold medallist told Sports Illustrated.
"But for someone to run 10.03 one year and 9.69 the next, if you don't question that in a sport that has the reputation it has right now, you're a fool. Period.
"I'm proud of America right now because we have the best random and most comprehensive drug-testing programme.
"Countries like Jamaica do not have a random programme, so they can go months without being tested.
"No-one is accusing Bolt, but don't live by a different rule and expect the same kind of respect. How dare anybody feel that there shouldn't be scrutiny, especially in our sport?"