Coughlin takes back world record

Coughlin took just minutes to reclaim her record in Omaha

Olympic champion Natalie Coughlin reclaimed her 100m backstroke world record in the preliminary heats of the United States Olympic swimming trials.

The 25-year-old clocked 59.03 seconds to reclaim the record after Hayley McGregory, 22, had lowered it to 59.15 sec in the previous heat in Nebraska.

"It gave me motivation to go a little faster than I was planning, said 2004 Olympic champion Coughlin.

Coughlin had set the old world record of 59.21 sec on 17 February this year.