Early in Wayne Rooney's time at Manchester United, a psychologist visited the club's training ground and one of the things he talked about was retirement.
'You reach 32 and you are coming to the edge of the cliff,' recalled Roy Keane, one of Rooney's predecessors as United captain.
'The psychologist said the descent could be gradual or "Bump" — you're over the cliff. You just hope it will be gradual.'
Rooney is 31 now and looking over the edge.