Ennis confirms Olympic Stadium return
Jessica Ennis will return to the site of her Olympic heptathlon triumph at the London 2013 Anniversary Games at the Olympic Stadium in July.
Alongside Mo Farah and Greg Rutherford, Ennis helped claimed one of Great Britain's three gold medals in the stadium on August 4 2012, and all three have now confirmed that they will return for the London Grand Prix.
"I have amazing memories of competing in the Olympic Stadium and it will be good to step out on that track again in front of a British crowd," Ennis told BBC Sport.
"I'll never forget the noise the crowd made when I competed last August and know that the draw of the stadium and the great line-up of athletes will fill the stands and make it another incredible occasion.
"I am training hard and am getting excited about the prospect of getting out there and competing again this summer."
The event will be held on the anniversary weekend of the opening ceremony of the London Olympics 2012, featuring all five of Team GB's Olympic medallists and 14 of their 16 Paralympic medallists.
Olympic 100m, 200m and 4x100m relay champion Usain Bolt is also in talks to appear at the Grand Prix, but Oscar Pistorius, who ran at both the Olympics and Paralympics, will not compete in London with organisers fearing a media circus.
Pistorius is on bail after being charged with the murder of girlfriend Reeva Steenkamp on Valentines Day, but has been cleared to compete before the case is heard in court.
However, UK Athletics chairman Ed Warner believes is adamant Pistorius would not be included in the London field.
"It would overshadow every other athlete that was there," Warner told BBC Radio 4.
"It's not about innocent or guilty, it's about how you handle an individual with a difficult moral situation hanging over them.
"Anything might change, he is in court before then, but based on what I know at the moment it would be a no if he rang this morning."