Chelsea plan to test Inter Milan's resolve with a bid for Andre Onana.
Onana only moved to Inter last summer from Ajax and has been outstanding in his first season in Italy.
La Gazzetta dello Sport says his form has attracted interest from Chelsea, where they're seeking to replace Edouard Mendy.
And they're willing to include players in an exchange for the Cameroonian.
On-loan striker Romelu Lukaku is eager to stay with the Nerazzurri long-term, while Inter are also keen on Blues defender Trevoh Chalobah.
Inter rate Onana in the 40m class.