Christine Ohuruogu makes Anniversary Games return
World 400m champion Christine Ohuruogu will return to London's Olympic Stadium to compete in July's Anniversary Games.
Ohuruogu, who won silver at London 2012 after claiming gold in Beijing in 2008, will use the event to prepare for August's World Athletics Championships.
"It will be a good indication of where I am," said Ohuruogu. "If things aren't right I'll have time to fix them."
Olympic champions Mo Farah, Jessica Ennis-Hill and Greg Rutherford will also compete at the event.
A two-day Diamond League meeting takes place on 24 and 25 July, with the IPC Grand Prix Final on 26 July.
Ohuruogu was victorious at the 2013 Anniversary Games before going on to win the world title in Moscow.
She hopes history repeats itself when the World Championships is staged in Beijing this summer.
"London in 2013 was a real decider for me going into Moscow," she said. "The event was really good, especially because I won.
"You've got tens of thousands of people watching, so it will be a really big nice send-off into the World Championships."
The stadium is currently closed in preparation for becoming the permanent home of Premier League club West Ham United but will open later this year for a number of events, including five matches in the Rugby World Cup.