Ake and Koulibaly are officially at Stamford Bridge now and it looks like the rumors about Kimpembe and Kounde will end with these two defenders.
Yes, Chelsea doesn't need more center-backs now since they already signed Ake and Koulibaly. They should end the negotiation to sign both Kimpembe and Kounde. These center-backs are expensive, Chelsea mustn't want to waste money because they are not urgent to buy more center-backs. I believe Chelsea management focuses on looking for a new CF. They need at least 1 top CF after Lukaku left the club. Lately, there is a rumor that they are trying to sign CR7 or Lewandowski.
Koulibaly and Nathan Ake are both left footed defenders. Chelsea lost Rudiger and Christensen who were right footed and there’s need to bring in a right footed defender to replace them. And there are reports that Ake isn’t leaving Manchester city again that the price Manchester city wanted was not something that the Chelsea were willing to pay. It will now look like Chelsea will have to turn their attention to Kimpembe following news of Manchester city transfer decision on Ake, or Sevilla Kounde who’s right footed to replace Azpilicueta who may leave anytime soon. Tuchel is more concerned with the defense and that’s why there’re no links to a striker.