The midfielder has fuelled speculation that he could be on the move this summer amid reports that the Serie A champions are ready to cash in on him for the right price
The Italy international has been linked with clubs such as Manchester United and Monaco in the past few weeks, but has so far stressed that he's keen to stay at Juventus.
However, he has now admitted that he could decide to move on after all if the Bianconeri no longer regard him as a key player.
"Juventus have stated that my own intentions are decisive when it comes to my future, but there are obviously two parties involved," the 27-year-old was quoted as saying by Corriere dello Sport.
"I will have to talk to Juventus to find out whether I'm still an important player like before. If that's not the case, it's only normal that I will start looking elsewhere.
"Of course, I feel proud when I hear of the interest of Monaco and Manchester United, even though nobody has called me at this point."
Marchisio has a contract with Juventus until the summer of 2016.