Johnson amazed by Bolt performance

Aug 21 - Michael Johnson paid tribute to new Olympic double sprint champion Usain Bolt on Thursday (August 21), describing the record-setting 200m run as "the most amazing athletic performance."

Johnson, who won the 200m and 400m double at the 1996 Atlanta Games, was as impressed as anyone in the 91,000 capacity Bird's Nest crowd when Bolt shaved two hundredths of a second off his previous 200m world best to win gold again.

Johnson still holds the 400m record at 43.18 seconds, but predicts Bolt could soon beat it. The Jamaican, though, has said he will not be running the 400 any time soon.

Bolt broke his own 100m record on Saturday in the Olympic final to become the first man to achieve the Games sprint double with world records.