In his recent Autobiography, Sir Alex Ferguson describes the signing of Owen Hargreaves as 'a disaster', revealing that there was also something about the midfielder that Fergie didn't like.
The midfielder started just 27 Premier League games in four seasons, although he did start in the 2008 Champions League final, scoring a spot-kick as United won on penalties.
However, Ferguson has responded in his recent autobiography, as reported by the Telegraph.
The Scot claimed that Hargreaves would take the easy option in training, accusing him of not having 'nearly enough determination'.
United could have signed the Canada-born midfielder a year earlier on a free transfer, but forked out a handsome sum for the man who had impressed at the 2006 World Cup.
And Ferguson regrets shelling out for the midfielder.
'When I signed him there was something about him I didn’t like,' said Ferguson.
'It turned out to be a disaster.'
Ranking Hargreaves as one of his worst signings is stark criticism given the transfers of the likes of Kleberson, Bebe and Eric Djemba Djemba.
But Fergie admits despite his dislike of Hargreaves and his attitude, he never had complaints when the former England international actually played.