The German is out of contract at the end of the season, but is so far yet to re-sign a new deal at Stamford Bridge.
Corriere Torino says Juventus are struggling to match Rudiger's demands. The report states that the Old Lady could still be £2.5million away from meeting the defender's required salary.
And that's before the negotiation of a signing on fee, which could amass an extra £2m as an incentive to encourage Rudiger to join forces at Juventus.
The Italian side haven't been the only team interested, with Real Madrid and Bayern Munich also rumoured.
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