If Juventus is vacillating on Estigarribia’s ‘buy back’, it’s only Alexander Kolarov’s ‘fault’. 
The Manchester City’s left outer is the number one target of Juventus for the left wing. Since long time he is under the viewfinder and according to Conte he is the right player for the left side. 
Also the expert of market Alfredo Pedullà confirms (to Sportitalia) the interest of Juventus in the Serb player: “The footballer wants to leave, and Conte has found in Kolarov his left outer with experience for the Champions League” 
Kolarov, stuck at City by Clichy, would welcome a return to Italy. Mancini’s club asks for 10 million euros for his transfer and is not willing to give him on loan. Marotta, with the approval of Conte, is thinking of ’getting rid of’ Estigarribia and fling himself on the City’s player. Indeed Juventus has place only for one of the two players, since Paolo De Ceglie has been confirmed for next year.
source: canalejuve.it