Napoli will not sell striker Gonzalo Higuain for anything less than his £78.5m release clause, according to Sky sources.
Sky in Italy say Napoli president Aurelio De Laurentiis spoke to Juventus president Andrea Agnelli on Monday at a meeting of Serie A club officials.
Higuain has a £78.5m (94m euros) release clause in his contract, a figure Juventus are willing to meet by offering cash as well as players.
If Napoli reject the players offered, it is understood they would allow the Italian champions to pay the release clause over a two-year period.
Sky in Italy understand the players Napoli would consider are Simone Zaza, Roberto Pereyra, Stefano Sturaro and Daniel Rugani.
Napoli are also aware of interest in Higuain from Arsenal, but there has been no contact from the Gunners over a deal for the 28-year-old.
Higuain, who joined Napoli from Real Madrid in 2013, has two years remaining on his contract in Naples. He ended the 2015/16 season as the top scorer in Serie A with 36 goals.