Chelsea are in advanced talks with Juventus for Gonzalo Higuain and Daniele Rugani.
Sportitalia says Chelsea have employed agent Fali Ramadani to broker the two signings.
Higuain had the best season of his career under new Blues manager Sarri at Napoli in 2015-16, shattering the Serie A record for most goals in a single campaign.
Rugani also worked with Sarri at Empoli for two years and has struggled for playing time at Juventus.
In total, the deal is expected to cost €100m, with Higuain rated at €60m.