Chelsea are eyeing Bayer Leverkusen defender Jonathan Tah.
The Germany international is being considered by Chelsea as a potential successor for Thiago Silva, who is off contract in June, says Kicker.
The defender can leave Bayer at the end of the season for a knockdown 18m buyout clause.
Tah has a deal with Bayer to 2025.
Chelsea aren't alone in their interest, with Manchester United and Liverpool also keen.