Chelsea have emerged as possible rivals to Juventus for Real Madrid right-back Danilo as the Premier League champions continue to seek reinforcements in wide positions.
The Brazil international, 25, has failed to establish himself as first choice since arriving from Porto in 2015 and Real are believed to be ready to sell if they can recoup the €31.5m (£28m) they paid.
The Blues have also trailed Danilo’s former team-mate Alex Sandro, now of Juventus, although the Italian champions are thought to be demanding around £60m for the left-back – a world record fee for a defender.
Chelsea manager Antonio Conte wants more options in both wing-back positions, having relied heavily on Victor Moses and Marcos Alonso on their run to the title last season.
Versatile defender Cesar Azpilicueta, the most natural deputy for Moses in Conte’s favoured set-up, is wanted by Barcelona after they failed in an attempts to prise Hector Bellerin from Arsenal.
The west Londoners have signed Germany defender Antonio Rudiger, who can play at centre-back or full-back, in a £35m transfer from Roma. His arrival could see Kurt Zouma leave on loan.
Chelsea are also interested in Monaco midfielder Tiemoue Bakayoko and Real Madrid forward Alvaro Morata, with Diego Costa expected to rejoin Atletico Madrid.
Bakayoko’s arrival could trigger the departure of Nemanja Matic, a target for Manchester United and Inter Milan, while England Under-21 star Ruben Loftus-Cheek has joined Crystal Palace on loan.