Baku, July 16, AZERTAC Kalidou Koulibaly is the second player to join Chelsea this summer, according to the official website of the club. The defender arrives from Napoli and has signed a four-year deal at Stamford Bridge Koulibaly, an international team-mate of Edouard Mendy’s, will significantly bolster our defensive options following the departures of Toni Rudiger and Andreas Christensen.Widely regarded as one of the best centre-backs in world football, the Senegalese possesses all the attributes an elite modern defender requires. He is a great reader of the game, a goal threat, and also adept in possession, comfortable bringing the ball out or playing progressive passes to put his team on the attack. He has been deployed in a back three and a back four during his eight years at Napoli.The captain of Senegal, Koulibaly is a natural leader and a strong character. He has plenty of experience challenging for domestic and international titles and joins the Blues ahead of the 2022/23 campaign aiming to do just that.