Chelsea are keeping tabs on Jose Gimenez's situation at Atletico Madrid.
The Sun says Chelsea scouts are watching Gimenez as the Londoners plan for life after Toni Rudiger and Andreas Christensen.
Both stoppers are leaving when their Chelsea deals expire in June.
The Uruguayan defender has clocked up 245 appearances for Atleti since moving to Spain in 230.
An international with 76 caps to his name, Gimenez is comfortable with the ball at his feet, and a fully focused man-marker.