Kalidou Koulibaly transfer: Chelsea reach deal to sign Napoli star center back in $40 million deal | CBS Sports Headlines Kalidou Koulibaly transfer: Chelsea reach deal to sign Napoli star center back in $40 million deal He helps the team replace Antonio Rudiger and Andreas Christensen ESN FeedsThis post was … Continue reading Kalidou Koulibaly transfer: Chelsea reach deal to sign Napoli star center back in $40 million deal