Chelsea are targeting RB Leipzig defender Josko Gvardiol to replace the outgoing Antonio Rudiger and Andreas Christensen this summer.
The 20-year-old defender is seen as a good option to play on the left side of a back three, in a similar position to which Rudiger currently plays for the Blues.
German international Rudiger has reportedly agreed a new deal with Real Madrid while Christensen looks set to join Barcelona.
Antonio Rudiger (left) and Andreas Christensen (right) are both set to leave Chelsea
The loss of the two centre-backs means Thomas Tuchel has his work cut out to fill the voids in the summer.