The 31-year-old has agreed a contract until 2026 at Stamford Bridge after ending his eight-year spell with the Serie A side. 3 Kalidou Koulibaly has joined Chelsea on a four-year deal from Italian side NapoliCredit: Getty 3 Koulibaly has arrived in Las Vegas for the Blues’ pre-season tour of AmericaCredit: Twitter: @ChelseaFC 3 Koulibaly has joined the West London outfit for a fee believed to be in the region of £34mCredit: Twitter Senegalese star Koulibaly has now arrived in Las Vegas, where he joined his new team-mates for their pre-season tour of America. It is the west London club’s second major signing of the summer following the signing of Raheem Sterling from Manchester City. It is understood the 2022 Africa Cup of Nations winner will earn around £162,000 a week during his time at Chelsea. Speaking to Chelsea’s website, Koulibaly revealed that compatriot Eduard Mendy and former Napoli friend Jorginho played a huge role in convincing him to join. He said: “I am very happy to be here with this team at Chelsea. “They are a great team in the world and my dream has always been to play in the Premier League. “Chelsea came first to sign me in 2016, but we didn’t do it. “Now when they came to me I accepted because they really wanted me to come to the Premier League to play for them. PLAY DREAM TEAM FREE – £100,000 PRIZE FOR HARPS! “When I spoke to my good friends Edou and Jorginho they made my choice easier, so I’m very happy to be with you today. “I want to thank the fans because I saw a lot of them in London and on the plane everyone was happy to be here. So I want to thank them and I hope that the season will be really good and we will give some good moments to the fans.” New owner Todd Boehly added: “Kalidou Koulibaly is one of the world’s top defenders and we are delighted to welcome him to Chelsea. “A great leader and exemplary team player, Kalidou brings a wealth of experience and qualities that will benefit our team and the club as a whole.”