The Belgium international, 26, insists he will not renew his contract with Zenit St Petersburg and is actively seeking a switch to the Serie A.
“I don’t have any intention of renewing my contract with Zenit because I want to have an experience in Italy,” Corriere dello Sport claim Witsel said to his representatives.
And Chelsea also reportedly had an offer for the player rejected, after which they turned their focus on Pedro, who joined the club from Barcelona last week.
Juventus manager Massimiliano Allegri is seeking midfield enforcements before the transfer window shuts next Tuesday.
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The boss has already signed Sami Khedira, Roberto Pereyra and loanee Juan Guillermo Cuadrado this summer to pack his midfield.
But, as they continue their pursuit of Tottenham's Erik Lamela, it is also understood a late bid for Witsel will also be made.