Alex Ferguson says there is nothing wrong with Roy Keane's forthcoming autobiography.
Keane has caused a storm after extracts from the book suggested he launched a pre-meditated attack on Alf Inge Haaland in a derby match 18 months ago.
The Norwegian has hinted he may take legal action against Keane as he has been beset by injury problems since that encounter.
However, Ferguson told The Sun: "I don't think there is anything wrong with the book whatsoever and nothing for him to worry about.
"While the book is not done with the club's consent, we do peruse it and go through everything thoroughly before it goes to the publishers.
"If there was a problem the club's lawyers would have picked up on it. I don't think Roy has a case to answer.
"We have not complained over the last two years when Haaland has made comments about Roy in the papers.''