The Argentine has been linked with a switch to Florence in recent weeks, has now denied that he has ever received any contact from the club.
"Never, never, never, have I had contact with anyone from Fiorentina," he told reporters at a press conference.
"And I don't think OL, or any intermediary or agent has either. I said that we could continue like this while I had two and a half years left on my contract.
"There is no problem with staying [at Lyon]. Now, I still have a year and a half left, it's the same thing. I've never wanted to leave."
Lyon are currently fourth in Ligue 1, four points behind leaders Paris Saint-Germain.