There are still "no guarantees" over the fitness of gold medal hopeful Phillips Idowu, according to UK Athletics head coach Charles van Commenee.
The triple jumper is currently out of action with a foot injury that kept him out of last month's Birmingham UK trials.
Van Commenee refused to make any guarantees over the athlete's fitness for the London Games, claiming only that Idowu was hoping to compete at Crystal Palace.
"I am told he is aiming to compete at Crystal Palace and that's all I know," Van Commenee told Sky Sports News.
"There are no guarantees. The athlete is injured. How can I possibly be confident?"
The Aviva London Grand Prix starts on July 13.
