The 26-year-old has one year left on his current deal at Stamford Bridge and his refusal to agree to an extension has led Chelsea to consider selling him while he still has value, rather than lose him for nothing in 12 months.
Courtois joined Chelsea from KRC Genk in 2011 and has gone on to make 154 appearances in all competitions for the Blues, conceding 152 goals and keeping 58 clean sheets.
The Belgian international has won two Premier League titles, one FA Cup and one League Cup after becoming a regular in the first-team four years ago, but his time in London could be coming to an end.
Chelsea are somewhat falling apart this summer, with owner Roman Abramovich halting plans to expand the stadium after he was denied a UK Visa.
Eden Hazard and Willian are being linked with exits after Chelsea finished outside of the Champions League spots for the second time in three seasons. It’s not hard to see why Courtois isn’t too keen to stay on.
Sky in Italy say the Blues could make an approach for AS Roma shot-stopper Alisson as a replacement for the 26-year-old this summer.