La Repubblica says the prospect has been raised inside the club after Ronaldo's blow-up during victory over AC Milan last weekend.
Ronaldo was hooked on 55 minutes and left the stadium before the final whistle in the 1-0 win. He then left Turin to join up with Portugal's squad without offering an explanation to coach Maurizio Sarri nor his teammates.
Juve directors believe there's been greater distance between Ronaldo and the rest of the dressing room this season. As such there's some debate about selling the Portuguese when he can still generate a hefty fee - even at 34 years of age.
Just last night, Ronaldo hit a hat-trick for Portugal in their Euros qualifying win against Lithuania.