CHRISTINE Ohuruogu has claimed the shine has been taken off her gold medal triumph - after negative criticism from back home.

A golden cloak became a shroud of suspicion yesterday as the new world 400m champion woke to read and hear hostile coverage of her success.

She insists her one-year ban - for missing three random drugs tests - was down to nothing more sinister than forgetfulness.

The Court of Arbitration in Sport concurs while Ohuruogu claims to have been tested more than any other British athlete during her year on the sidelines.

"It's certainly spoiled it for me," she said. "It's very difficult to contend with so much negativity when you know you've work so hard for something.

"I understand that people have questions but I've explained myself to two panels and both agreed there was nothing dubious in my actions.

"I just forgot to let my whereabouts known. It was a simple act of forgetfulness and that's all it was.

"I don't understand why people are still asking me to explain myself."

Ohuruogu, 23, admitted she'd spoken with British Olympic Association chief Simon Clegg since claiming the world title.

At present she is facing a life ban from the Olympics, as part of the BOA's zero-tolerance rule on those connected with drugs bans.

But she is confident her appeal, which is being fully supported by UK Athletics, will see that decision overturned.

"I'm number one in the world and it would be a shame if I wasn't in the Olympics," she said. "I'm hoping the appeal will swing my way now."

Tasha Danvers Smith was ranked eighth in the world before these championships and that's where she finished in yesterday's 400m hurdles final.

"I went for it and it didn't pay off but no-one likes to finish last," she said. "I know I'm as good as anyone here, it's just a matter of getting it right when it matters.

"I don't have a doubt that I have the ability and a talent to get a medal next year."

Elsewhere, Michael Rimmer advanced to the 800m semi-finals and Mo Farah - a silver medallist at last year's European Championships - progressed to the 5,000m final.

Meanwhile, Marlon Devonish is in the shape to help deliver Britain's second gold - according to British relay coach Michael Khmel.

Devonish, who finished sixth in the 100m final, didn't attempt a sprint double in order to focus on today's 4x100m heats.

And victory should secure Britain the sweep of major titles - following their success in the 2004 Olympics and last year's European Championships.

"Marlon is in great shape, he's had an excellent season and is running with big confidence," said Khmel.

"It was his decision not to attempt the 200m but it's a perfect scenario for me. All the guys are fully rested after the 100m and we've had four whole days to get them ready.

"There is a very good spirit - it's hard when they're rivals one minute and team-mates the next but things have come together well."

Redcar race walker Johanna Jackson is also in action today, as she looks to brave hot and humid conditions in the 20km walk.