And Chelsea are one of several sides interested in Lille frontman Victor Omishen, while they have also been monitoring Lyon striker Moussa Dembele.
Meanwhile, interest in Ben Chilwell has cooled after Leicester slapped an £85m price tag on their star man so Alex Telles is now favourite to bolster the left side of the Chelsea rearguard.
And a host of high-profile goalkeepers have been touted for a move to Stamford Bridge but Gianluigi Donnarumma is currently the stand-out option ahead of Jan Oblak, Marc-Andre ter Stegen, Andre Onana, Manuel Neuer, Dean Henderson, Nick Pope and Juan Musso.
Elsewhere, one of Marcos Alonso or Emerson Palmieri is expected to depart while Willian, Pedro, Olivier Giroud and Willy Caballero are all out of contract.
Fikayo Tomori could also be sent out on loan next term while the futures of Andreas Christensen and Kurt Zouma remain unclear, meaning Umtiti’s potential arrival would be timely.