Wariner takes the plaudits.

Briton Tim Benjamin missed out on a medal in the men's 400m as he finished fifth behind American Jeremy Wariner.

Benjamin had beaten Wariner at Crystal Palace three weeks ago, but on the bigger stage the Olympic champion dominated the race to add the world title to his Olympic crown.

Wariner's time was an impressive 43.93 seconds - making him the seventh fastest athlete of all time - which put him well ahead of team-mate Andrew Rock who set a new personal best of 44.35.

A national record for Canada's Tyler Christopher of 44.44 was enough to give him bronze.

But Benjamin's run of 44.93secs was almost as impressive, given the 23-year-old spent most of April in hospital when a painkilling injection in his back went wrong, leaking spinal fluid into his brain.

"I'm breaking into 44-second territory regularly now," said the Cardiff athlete.

"Things keep going forward for me and I'm pleased to be number one in Europe.

"It's been a really massive experience for me to run 44 seconds from lane one. I've tried my very best over a year that's not been easy. I just need consistency and to avoid injury.

"I think it's been a massive experience for a lot of us on the team. You have to give people time to develop and I am definitely on the up and up."