Usain Bolt's coach says the triple Olympic gold medallist and world record holder Usain Bolt could have run the 100 metres in 9.52 seconds if he had not slowed to celebrate.
Glen Mills says Bolt, who electrified Beijing with his sprint victories, is at the start of his career and will peak only in about two years' time.
Bolt set a world record of 9.69 seconds in the 100, and was so far ahead of the field that he slowed before the end to celebrate.
Mills says if the Jamaican had continued, the slowest he would have run would have been 9.52.
Tomorrow night in in Zurich he'll face the two men who won medals behind him in the Beijing 100, Richard Thompson of Trinidad & Tobago and American Walter Dix.