"If Mr Ferguson would stop talking about Liverpool maybe it would be good. He is clearly nervous about Liverpool," said Benitez.
"I can tell you that a lot of people have sent a lot of messages - not to me but to my staff and a lot of people at the club - to say, 'At least one person has said something everybody wanted to say.'
"Maybe because in 20 years nobody could say these things and maybe a lot of people were thinking the same but didn't want to say.
"I have known Mr Ferguson for five years now and I think it's too early to be playing mind games. He has to think about his own team.
"I have a lot of respect for him. He is a great manager but he was talking too much about Liverpool, so clearly he has to stop.
"My concern now is to prepare the team for the next game against Everton and that's it. I always say we take things one game at a time - that is my philosophy and my idea."