Chelsea have raised the prospect of a swap to keep hold of Atletico Madrid striker Joao Felix.
Felix joined Chelsea in January on-loan without a permanent option.
Chelsea are keen to keep hold of the striker and have discussed a player swap for the Portugal international.
The London Evening Standard says after a series of calls, Atletico are demanding 100m for Felix, though are open to a new loan for a fee of 16m.
Chelsea have raised the idea of a player exchange knowing Atletico are interested in both Pierre-Emerick Aubameyang and Marc Cucurella.
Felix scored in Chelsea's win at Bournemouth on Saturday.