World Athletics Championships

USA's Dawn Harper-Nelson crashes into hurdle during 100m semi-finals

Published: August 28 2015 | 12:34

Last updated: August 28 2015 | 21:31

Medal favourite Dawn Harper-Nelson of the USA crashes into the second hurdle of her 100m hurdles semi-finals at the World Athletics Championships in Beijing.

USA's Dawn Harper-Nelson will not contest for a medal in the women's 100m hurdles final after she crashed into the second hurdle in the semi-finals at the World Athletics Championships in Beijing.

Dawn Harper Nelson of the United States reacts after falling during the Women's 100 metres hurdles semi-final during day seven of the 15th IAAF World Athletics Championships Beijing 2015 at Beijing National Stadium on August 28, 2015 © Getty Images

The former Olympic champion was one of the favourites to reach the podium in the final later today, but she failed to finish the race.

After storming out of the blocks, the American clipped the second hurdle, which caused her to tumble to the floor and fall out of contention for a place in the final.

Meanwhile, Great Britain's Cindy Ofili finished the semi-final sixth in 12.91s, which was not good enough to reach the final.