Olympic pole vault champion Yelena Isinbayeva will compete at the London Grand Prix as a final preparation for the defence of her world title.
Russian Isinbayeva has signed up to compete at Crystal Palace on 24 and 25 July, when sprint star Usain Bolt will also be in action.
“I want to make sure I am in good shape and at my best there,” she said.
“It will be my last proper competition before heading out to Berlin, so I want to know I’m in the best possible form.”
Isinbayeva, who turned 27 on Wednesday, has won the London event in each of the last six years, setting a new world record mark on three occasions.
She won her second Olympic gold medal last year in Beijing with a clearance of 5.05m – her 14th outdoor world record – and she has since raised her best indoor mark.
“I’ve set three world records there already so I know it is a place where I can perform well, and hopefully this year will be no different,” said Isinbayeva.
“I’ve set 26 world records so far, and I still feel I can get even better, so hopefully I will give everyone plenty to cheer.
“My coach and I have selected five events I want to compete at this summer as I prepare to defend my World Championship title in August, so every meet will be really significant.”

source: news.bbc.co.uk