Chelsea are prepared to sell Toni Rudiger AND Andreas Christensen this summer.
Goal says they're considering signing a new defender this summer amid uncertainty over Rudiger and Christensen's contracts.
Both centre-backs have two years to run on their current deals but any talks over renewing would come ahead of a huge transfer window for the club.
Negotiations have not yet begun for either Rudiger or Christensen.
And Chelsea are still weighing up whether to try and sign a fresh defender, as a result.
With Hakim Ziyech and Timo Werner already in the bag, attention is soon expected to turn to shoring up the defence.
