Sam Ridgway, 15, who is ranked number four in the South East and 27th in the country at the under-17 hammer throw, has become disillusioned with waiting for the world-renowned stadium to fix the hammer cage, which has been out of action since the Spring.

The discus cage is also said to be in a poor condition with netting hanging loose around its sides.

Sam, a 6ft5 Waddesdon pupil, had been at the Vale of Aylesbury Athletics Club for two years, but he has now moved to the Marshall Milton Keynes club so he can have access to the better facilities that he needs to continue improving in his sport.

His father, Adrian, of Far Furlong Close, Aylesbury, said: "They (the stadium's management) have been promising to repair the cages all year. It has left athletes in a terrible situation.

Stoke Mandeville Stadium, which is managed by Leisure Connection, was contacted, but they failed to comment.