The Belgium international had been linked with a move to the newly-crowned Serie A champions, but the midfielder has stated that he is still happy at the Sardinian side
The Belgium international has been a reported target of Antonio Conte’s men for some time, with a summer switch to Turin supposedly on the cards.
However in spite of this, the 24-year-old has said that he is content in Sardinia but admits a move to a bigger club would help boost his international chances.
"There are links with Juve but I am a player of Cagliari and proud of it,” Nainggolan told Radio Mana Mana Sport.
“The most important thing for me is to always give the best for this team. In Cagliari I am well and happy.
"If this year I play at Cagliari and next year at Real Madrid there are still the same other players at international level as three months before.
“Obviously, the fact of playing with Cagliari makes me less visible to the coach and thus gives me difficulties at international level.
“Stay in Sardinia? Why not? I think there is a project ongoing and if I can do something good with Cagliari, I'd stay.”