oma's sporting director Walter Sabatini is in London for talks about the possible sale of Radja Nainggolan to Chelsea, according to Sky in Italy.
Incoming manager - the Italian Antonio Conte - is believed to be a huge fan of the Belgium international midfielder.
Chelsea are refusing to comment but Sabbatani was pictured in West London by a Belgian newspaper on Friday.
Formerly with Cagliari, the 27-year-old Nainggolan joined Roma initially on loan in 2014, and he has been a key performer for the side from the Italian capital this season.
Capped 18 times by Belgium, Nainggolan is under contract until 2020 and Chelsea would have to part with a sizeable transfer fee to secure his services.
Conte will take charge at Chelsea when his duties with the Italy national side end after the Euro 2016 tournament.
And he has also reportedly expressed an interest in signing another Roma player, Greek international defender Kostas Manolas.