Athletics: Usain Bolt shattered his own world record with another sensational performance to win the 100 metres at the World Championships in Berlin. The triple Olympic champion stormed to victory in Berlin's Olympic Stadium in 9.58 seconds, comfortably beating the mark of 9.69secs he set in Beijing last year.
Defending champion Tyson Gay set an American record of 9.71 to claim the silver with former world record holder Asafa Powell third in 9.84.
Britain's Dwain Chambers was sixth in 10.00, a season's best for the 31-year-old.
The race had bee much-hyped but the Jamaican superstar duly delivered, powering out of the blocks at the first time of asking in the final and seizing control of the race within 30m.
From there it was only a matter of the time and the large crowd exploded as Bolt streaked across the line to create another piece of sporting history.
Earlier in the day, Chambers' fellow Briton Tyrone Edgar had crashed out in the semi-finals, a false start seeing him disqualified.