World champion Mo Farah will compete over 5,000 metres at the London Grand Prix in July. The Crystal Palace meeting, which takes place on 13 July, will be the distance runner's last event before the Olympics.
Farah, who has been training in America, said: "I miss London and it's not until you're back that you realise just how much you miss it."
The runner, who missed out on a medal in the 3,000m at the World Indoor Athletics Championships in March, said the London meeting would be "a great way to prepare for the summer ahead". He added: "At Crystal Palace we always get a great crowd and I'm really looking forward to competing on home soil before the Olympics."