Bolt eyes legend

"I keep telling you guys my aim is to become a legend. I don't think about records. I don't put myself under pressure. I know what to do and I go and execute," the 22-year-old said.

"I did well for myself and I am on my way to becoming a legend so I am just happy."

Asked whether a knighthood from Queen Elizabeth would be something he would like, Bolt said: "I just say that would be a great thing. Seriously that would be wonderful.

"I would get the title 'Sir Usain Bolt'. That sounds very nice."

Bolt claimed three gold medals at the Beijing Olympics last year and two at these world championships in Berlin, smashing the world records on his way to every title.

In the same stadium where American Jesse Owens won four gold medals, including three in the sprints, at the 1936 Berlin Olympics, Bolt knocked off 11 hundredths of a second in each of his two gold medal races, the 100 and 200 metres.

He ran a jaw-dropping 9.58 seconds in the 100 before pulverising his 200 mark with a new world record of 19.19.

"I keep saying anything is possible. You work hard, you train hard. I still train very hard and running fast races doesn't change that," he said.

Bolt said he was not interested in convincing those who did not believe the records were a result of his hard work, saying that questions about doping were an inevitable part of athletics.

"I am not worried. I don't get offended," he said. "I know it is going to be always like this in the sport."