World indoor triple jump champion Teddy Tamgho of France will miss London 2012 because of an ankle injury.
Tamgho underwent surgery on a bone growth last week, and added that he did not want to jeopardise his career by returning to competition too soon.
He also missed last year's world championships in Daegu through injury.
He was banned in December by the French athletics federation for an alleged physical altercation with a female athlete. His ban was initially for a year, but was then reduced to six months with six further months suspended - a duration which would have allowed him to compete in London in July.