Chelsea seal deal for elite powerhouse defender

Chelsea have continued their post-Abramovich spending spree

Premier League giants Chelsea have competed the big-money signing of Senegal captain Kalidou Koulibaly, 31, from Italian side Napoli, as the Londoners again get their checkbook out as they continue to transition out of the Roman Abramovich era.

A fast, powerful center back, Koulibaly has been drafted in from the Serie A side to bol