Antonio Caliendo insists there has been no movement as yet and says any negotiations will have to wait.
"First it's important to take note that David has another year's deal with Juve, so Bianconeri are those who must decide," he told Calciomercato.it.
"For the moment all the big Italian sides are engaged in following their aim on the pitch and they are not thinking to the (transfer) market."
He added on tuttomercatoweb: "Lyon? I know that they have always liked David. The presence of Bettega (Juventus deputy general director) on Tuesday in Lyon? He was probably there to watch the Champions League match with Bordeaux.
"I currently know nothing. Trezeguet still has a year contract with Juventus."