Olympic 400m champion Christine Ohuruogu insists she will go to the World Championships despite coming last in her final major event before Daegu.
Ohuruogu, who has just recovered from a cold, was left trailing in the London Diamond League meeting, finishing over two seconds behind Sanya Richards-Ross.
But she has already qualified for a place in the GB squad, which will be announced on Tuesday.
"I don't believe it will take me long to get fit. I'm still going," she said.
"You need to be fit, you need to be fast and need to be strong. I'm lacking in a few areas. I just haven't done enough work to challenge these girls.
"I did enjoy it (the race), I've missed running with these girls. I gave them all a big hug before we started."
Ohuruogu has missed 10 weeks of trainign this year because of the quadriceps injury that ruled her out for much of last season.
She has not broken 50 seconds for the 400m since the Olympic final in 2008. And her best time this year of 51.49 seconds leaves her ranked only fourth in Britain after Lee McConnell finished fifth in 51.01sec on Saturday.
But she secured a place in the British squad with her performance at UK trials, despite finishing third in Birmingham, because second-place finisher Shana Cox is not yet eligible to compete for Great Britain after moving from the United States.
American Richards-Ross backed her old rival and friend Ohuruogu, saying: "Christine has shown that she is excellent at championship meets.
"Like me she has great experience so I think she'll definitely be one of my top competitors."
But BBC Sport analysts Denise Lewis and Colin Jackson questioned whether Ohuruogu should forget about her World Championships ambitions this year and try to get in shape instead to defend her Olympic title next summer.
"That was a terrible race for her," said Lewis, Olympic heptathlon gold medallist in 2000.
"It's soul-destroying watching her race just fall apart. It's hard to be a world and Olympic champion looking like a shadow of yourself, and it's a question of whether she should be going to Daegu."
Jackson, twice world champion in 110m hurdles, added: "The team will say, 'We're not in the shape we want to be, so we may leave the World Championships this time - try to concentrate on getting well and keeping fit so you can work day in, day out."