"There is nothing to hide. We talked to him, like Juande said, the other day and he was not in the right condition to play - I think you say in England, 'not in the right frame of mind'.
"That's the situation, everybody knows, there's nothing we can do."
The Bulgarian has stated it would be his "dream" to move but United are believed to have had a £20.5m bid rejected for the player.
On Friday Manchester United boss Sir Alex Ferguson, without naming any specific player, admitted he was "less optimistic" than he had been about the chances of bringing in a new striker before the start of the season.
Ramos is due to speak to Berbatov on Sunday.
"The only thing I concern myself with is picking the best team to try to win the game. I shall talk to the player on Sunday, he is our player and we shall work with him at training."
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