Dix, Jeter lay down gauntlet

American Walter Dix said Olympic and world champion Usain Bolt could "definitely be beaten" at the global championships in South Korea after easing to victory in the 200 metres on the second day of the London Diamond League meeting on Saturday.

Dix was among a number of US athletes to record impressive wins on a cool day in the British capital, with fellow sprinter Carmelita Jeter and one-lap queen Sanya Richards-Ross also laying down the gauntlet to their rivals ahead of the worlds in Daegu which start on August 27.

Olympic double bronze medallist Dix, the top American male hope for sprint medals in the absence of the injured Tyson Gay, clocked 20.16 seconds into a minus headwind and was pleased by his performance.