Diarra has become a key player for Bordeaux and has been linked with a host of Europe’s biggest clubs.
Reports have recently suggested that City could sign the midfielder in the January transfer window.
“We have not had any approach from them to now,” said Triaud in an interview in France.
“But this does not mean they are not close to the player.
“But I would just like to reiterate the market begins in a week and by then, the rumours will multiply. As usual.”