It’s suggested they’ll demand at least £89m to part with their prized asset.
The 28-year-old has played 91 games for Juve since joining the club from rivals Roma in 2016.
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Juve need to replenish their coffers having snapped up Cristiano Ronaldo from Real Madrid.
The Portuguese superstar cost an eye-watering £89m fee.
After putting pen to paper in Turin, Ronaldo said he was targeting the Champions League following Juve’s period of dominance in the Italian top tier.
Ronaldo said: “I do know that the Champions League is a trophy every club would like to win. This is an option. We are going to fight not only for the Champions League but for the Serie A title.