When flintoff retired from cricket?
Flintoff, 32, retired from test cricket last year following the Ashes victory over Australia but had hoped to represent England again in one-day cricket.
"The decision to end my career came yesterday after consultation with medical advisers," he said in a statement.
"I was told that the problems I have been trying to overcome in re-hab for the last year following the latest in a series of operations would not recover sufficiently to allow a comeback."
Flintoff underwent knee surgery last August and needed a second operation in January. He has missed the entire county season.