Chelsea are preparing to make an offer for Daniele Rugani worth over £45 million ($59m) after Juventus rejected their initial bid.
The Blues made a first approach for the centre-back this month when representative Fali Ramadani met with the Bianconeri's sporting director, Fabio Paratici, in Milan.
The Serie A champions knocked back that initial £36 million ($47m) offer, expecting around £10m more for the 23-year-old..
And the London club are willing to match that price in their next offer to close in on one of their top targets for the summer.
Chelsea are willing to offer Rugani a contract worth around £4m per season to reunite him with Maurizio Sarri.