Medals chase set to go to the wire

As predicted by UK Athletics head coach Charles van Commenee, Britain look set to have to wait until the final day of the World Championships to achieve their medal target.

Van Commenee set a target of seven medals in Daegu, one of them gold, and Britain currently have five, with Dai Greene supplying the gold in the 400 metres hurdles on Thursday.

However, a disappointing performance on Friday night means Phillips Idowu in the triple jump and Mo Farah in the 5,000m are Britain's most realistic chance of more medals, both on Sunday.

Saturday night's action sees Tiffany Porter in the semi-finals and possibly the final of the 100m hurdles, although the American-born athlete faces a tough task to win a medal in a high-class event.

And the 4x400m relay quartet of Christine Ohuruogu, Nicola Sanders, Lee McConnell and Perri Shakes-Drayton are also up against it in their final with Russia, the United States and Jamaica likely to contest the medals.

Jenny Meadows had been thought of as a good medal chance in the 800m, but surprisingly failed to make the final after finishing third in the opening semi-final on Friday.

Team-mates Emma Jackson and Marilyn Okoro also failed to advance - although Jackson did record a new personal best - while Goldie Sayers was 10th in the javelin final, Chris Tomlinson 11th in the long jump final and Helen Clitheroe 12th in the 5,000m final.

Tomlinson struggled with a knee injury in the long jump, managing a best of 7.87m just weeks after setting a new British record of 8.35m in Paris.

"I'm devastated," Tomlinson said. "Things were going very good for me coming into these championships. I picked up an injury a few weeks ago and managed to scrape on through qualifying but I couldn't take off. I'm absolutely gutted. I know there is a big jump there but unfortunately it wasn't to be."

Team captain Christian Malcolm also failed to make the 200m final, while the men's 4x400m relay team - without an exhausted Greene - could only finish seventh.