The France international has little over a year to run on his existing deal and agent Antonio Caliendo admits he is fielding rival interest.
Juve chief Roberto Bettega was in France this week, fueling talk he was negotiating the sale of Trezeguet with Lyon officials.
He told TMW: "I know Lyon has always liked David.
"Bettega in Lyon? He was there to watch the Champions League match with Bordeaux. I currently know nothing: Trezeguet still has a year's contract with Juventus, and it will be the club which must let us know what are they going to do. "