Chelsea manager Mauricio Pochettino is expecting four new arrivals before the window closes.
Leeds United's Tyler Adams should be the first while bids are being worked on for Crystal Palace winger Michael Olise and Juventus striker Dusan Vlahovic. Brighton's Moises Caicedo is also making it clear he wishes to join.
Chelsea, of course, have to meet Brighton's £105m valuation for Caicedo but Adams is a more straight-forward release clause of around £20million.
Palace have not been happy about Chelsea's approach for Olise, who is also on City's radar, but Palace want Chelsea left-back Lewis Hall on loan.