Berlin, Aug.22 (ANI): Track legend Michael Johnson says Usain Bolt's latest world records could last at least 20 years.
Bolt, 23, won the 100metres gold in an astonishing 9.58sec on Sunday and the 200m in a sensational 19.19sec on Thursday.
The Jamaican smashed Johnson's old world 200m record of 19.32sec in the Olympics - a mark which had stood for 11 years.
American Johnson said: "The person who could break those records has probably not even been born yet. And there's nothing to suggest he won't continue to amaze."
Johnson had challenged Bolt to repeat his Beijing heroics here. (ANI)