The 22-year-old, who last year won the World Indoor Championships title and also produced a jump of 17.98 metres, putting him third on the all-time list, suffered the break while warming up for the European under-23 Championships.

At the time he said: "It hurts a lot.

"It looks serious but I hope the season is not over for me."

Asked before the Birmingham Samsung Diamond League meeting earlier this month why he felt it important to compete in the Under-23 Championships, he said it would help him to bed down some minor changes he had made to his jumping technique and added that he needed to compete often before the World Championships.

Tamgho would have been among the favourites for the gold medal, having won the European indoor title in his home city of Paris in March.

He set a indoor world record with his jump of 17.92m and set the leading distance in the triple jump in 2011, with a leap of 17.91m in Lausanne in June.

He was due to participate in Friday's (July 22) Samsung Diamond League meeting in Monaco, where he would have faced Idowu.

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