Chelsea have signed French centre-back Wesley Fofana from Leicester City on a seven-year deal for £70m plus add-ons.
He was restricted to just seven league games during the 2021-22 campaign after breaking his leg in a pre-season friendly against Villarreal.
"The two last days have been really big for me and I'm very happy," he said.
"I trained this morning with the team and it's a dream for me. I'm very excited to start playing games for the fans and the club.
"I'm here to win trophies - the Champions League, Premier League, FA Cup, Carabao Cup, everything.