Barcelona president Josep Maria Bartomeu insists no player has asked to leave.
Barca defensive duo Javier Mascherano and Daniel Alves are said to have agreed deals with Juve.
"No player has told us that they will leave. I read in the press, hear on the radio... there are a lot of clubs that want our players. But we are very confident that Messi, Pique, Iniesta, Busquets, Ter Stegen, Neymar and Suarez will continue. They've told us they're happy, so we are relaxed," said Bartomeu.
"Every year there are changes, Barça will need freshening up, new names to generate excitement. New players will come and others will go, but I can't name names."