According to the Daily Telegraph reporter Matt Law, Chelsea's winter window left-back reinforcement is the recall of Emerson, and the loan of Durst is also an option.
Chelsea need to strengthen left-backs due to Chilwell's injury, but they are reluctant to sign a new signing, so recalling Emerson from Lyon is their first choice, and if they can't, they will consider signing the new left-back on loan plus an option to buy out.
Both Digne and Dester have been considered, but now there are 2-3 clubs willing to sign Digne permanently, which is more attractive to Everton. Barca are willing to let Dester go, which is most likely to start on loan at Chelsea.
(Luke)
![Team report: Chelsea wanted to recall Emerson, but Lyon refused[fig]](data:image/gif;base64,R0lGODlhAQABAIAAAP///wAAACwAAAAAAQABAAACAkQBADs=)