Chief executive Peter Kenyon has rejected claims from AC Milan that Chelsea have made an offer for their Brazil star Kaka.
Speaking over the weekend, Milan vice-president Adriano Galliani claimed the Stamford Bridge club had tabled a "conspicuous offer" for the reigning world player of the year.
Further reports suggested the Blues were ready to pay up to £70million for the 26-year-old attacking midfielder, but Kenyon has cooled speculation linking Kaka with a move to the Premier League.
"There was no offer made. I have read the same articles," he said.
"They have made it clear that he is not for sale and we will make it clear we have not made an offer.
"There is no reason to negotiate over something they don't want to do and we have not made an offer."
However, Kenyon has admitted that Chelsea are interested in signing another Brazil international.
The Blues chief has confirmed reports linking them with a move for Real Madrid forward Robinho.
"It is well noted we have shown interest," he added.
"We have had discussions with Madrid over it and they are ongoing.
"The window is still open and we are still talking to Madrid."