Ahead of the January transfer window, the Blues have reportedly found the perfect replacement for Marcos Alonso and Emerson Palmieri.
Alonso and Emerson Palmieri have been linked with exits after struggling for game time following the arrival of Ben Chilwell from Leicester City during the summer.
According to The Telegraph, Chelsea are eyeing a move for highly-rated RB Leipzig defender Matthew Bondswell.
The 18 year old left-back is currently on loan with Dutch outfit FC Dordrecht and has so far racked up seven appearances for the club in all competitions.
He has been capped for England at Under-15s, U16s, U17s and U18s level and is also believed to be wanted by West Ham.