The Blues are set to finally strike a deal to sign Bayer Leverkusen star Kai Havertz which could see them paying an initial £ 70million plus potentially more than £ 15million in add-ons.
They are also hoping to sign Brazilian defender Thiago Silva on a free after leaving Paris Saint-Germain, with reports in Italy claiming the Brazilian had passed his medical exam and signed the necessary documents ahead of a move on Thursday.
Frank Lampard is keen to bring in a top-level goalkeeper to replace Kepa Arrizabalaga in a recruiting drive he hopes will help restore Chelsea as a title force after two unsigned windows.
The Blues head coach is a fan of André Onana at Ajax, while his hopes of landing Manchester United’s Dean Henderson were dashed when the goalkeeper signed a new deal at Old Trafford on Wednesday.
Chilwell and Sarr follow Timo Wener and Hakim Ziyech through the gate to Stamford Bridge.