One of the Belgian midfielder's agents has made it clear that his client's future is still undecided as both clubs have not agreed terms over a potential summer move
The Belgium international was heavily linked with a move to the Bianconeri in the January transfer window, but the move never materialised.
Reports then suggested that both clubs had already agreed terms over a transfer in the summer, yet Lasarcina is unaware of any such agreement.
"We don't know everything that's being discussed at the club, but we never talked about an agreement for a summer move," Lasaracina said to Tuttomercatoweb.
"Juventus are obviously a great club, but it all depends on the proposals and offers that are made. A choice will then be made in harmony between the club and the player."
The 23-year-old midfielder has a contract with Cagliari until June 2014.