Despite Thomas Tuchel's desire to freshen up his first-team squad, the Blues are yet to make any additions in response to Andreas Christensen, Antonio Rudiger and Romelu Lukaku all departing Stamford Bridge.
Nevertheless, Chelsea's current priority is in defence, and speculation persists that De Ligt has emerged as their first choice to strengthen their backline.
That said, it has been claimed that the Italian giants are prepared to marginally lower their valuation for the 22-year-old in a bid to find a resolution which suits all parties.
Chelsea are allegedly open to paying up to £65m for de Ligt, a significant improvement on reportedly wanting to spend £34.4m in a player-plus-cash proposal.
Despite that figure being much closer to Juventus' asking price, Jacobs adds that it may take an approach closer to £70m to complete a deal with the likes of Pulisic or Werner involved.
At one stage, Juventus had been hoping to extend the player's contract past the end of 2023-24, but Juventus CEO Maurizio Arrivabene previously hinted that a parting of the ways looked most likely.
Speaking to Tuttosport, Arrivabene said: "It's impossible to keep players when they want to leave the club - but all the three parties in the negotiations have to be satisfied."
Although Chelsea seem to be focused on trying to negotiate a deal for De Ligt, a number of other defenders have been linked with a switch to West London.
The Premier League outfit have a long-standing interest in Jules Kounde, but they are yet to agree terms with Sevilla over a transfer which would cost in excess of £50m.