#3 Danny Drinkwater going out on loan
The 28-year-old midfielder was signed in 2017 from Leicester for a fee of £35m, as The Blues sought him as a replacement for the Manchester United-bound Nemanja Matic, and saw it as an opportunity to reunite the midfield winning combo of Leicester's unlikely PL triumph in 2016 (alongside Kante).
However, despite the acrimonious circumstances surrounding his departure (Drinkwater submitted a transfer request to force through his Chelsea move), his first year at Chelsea was underwhelming, and with the new arrivals of Jorginho and Matteo Kovacic, as well as the seeming impressiveness of Sarri with Ross Barkley, Drinkwater would find himself moved further down the pecking order in Chelsea's midfield.
A loan move seems to be the decision taken by Maurizio Sarri. West Ham and Everton had earlier shown interest to take the Chelsea flop on loan on loan, but with the Premier League window now closed, it seems the pensioners would wait and offload him when a foreign club expresses interest.