World triple jump champion Phillips Idowu will have to master the raised jumping platform to win at Stockholm.

Idowu finished fifth in Gothenburg a week ago after struggling with his technique until the last jump, which although a big one, was a marginal foul.

The 31-year-old Londoner never came to terms with the raised platform used instead of a ground-level competition area used at major indoor championships.

"That's the risk you take when you compete indoors, sometimes you compete on boards and sometimes you're competing on a track on concrete," Idowu said.

"The style of jumper I am, I struggle to jump on boards. I haven't jumped on that kind of surface since back in 2005, I think it was when I competed in Madrid at the European Indoors."

Idowu is determined to get back to winning ways on his return to Sweden, where his rivals include former Olympic and World champion Christian Olsson, who is fit again after recent injury problems.

Gothenburg winner David Giralt is also in the field along with fellow Cuban Alexis Copello and other global stalwarts Walter Davis and Fabrizio Donato.

"I tried my best in Gothenburg and didn't quite get my act together until the last round," Idowu said.

"Compared to the winning jump it was there or thereabouts, but it was a no-jump and counts for nothing.

"Coming out of the hop into the step I just wasn't active enough on the ground to prepare myself into the next phase.

"I was collapsing out of the hop, I was collapsing out of the step and therefore I wasn't able to get a decent jump. Plus I had to shorten my run up as the runway wasn't long enough.

"This time of the year you're going to be rusty when it's one of your first meets, but I've got something to build on now."

The fifth meeting of the 2010 IAAF Indoor Permit Series will see the return of Meseret Defar, who will attempt to challenge the 5,000m record of 14 minutes 24.37 seconds she set a year ago.

The Ethiopian is currently in brilliant form, narrowly missing her much tougher 3,000m record of 8min 23.72secs in Stuttgart on Saturday by a tantalising 0.74s.

Blanka Vlasic, who cleared 2.06m at the weekend in Arnstadt but failed to beat Kajsa Bergqvist's world record of 2.08m, will again be chasing the Swede's three-year-old mark.